Lets do this properly - from the UEFA rules found here:
IX Player Eligibility
Article 17
General provisions
17.01 In order to be eligible to participate in the UEFA club competitions, players
must be registered with UEFA within the requested deadlines to play for a
club and fulfil all the conditions set out in the following provisions. Only
eligible players can serve pending suspensions.
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17.02 Each club is responsible for submitting an A list of players (“List A”) and a B
list of players (“List B”), duly signed, to its national association for verification,
validation, signature and forwarding to UEFA. These lists must include the
name, date of birth, shirt number and name, nationality and national
registration date of all players to be fielded in the UEFA club competition in
question.
17.03 The club bears the legal consequences for fielding a player who is not
named on list A or B, or who is otherwise not eligible to play.
17.04 The UEFA administration decides on questions of player eligibility.
Challenged decisions are dealt with by the Control and Disciplinary Body.
17.05 Players must be duly registered with the national association concerned in
accordance with the national association’s own rules and those of FIFA,
notably the FIFA Regulations for the Status and Transfer of Players.
17.06 A player registered with one national association may only be registered with
another national association once the latter has received the International
Transfer Certificate from the national association that the player is leaving.
17.07 Excluding the three rounds of the UEFA Intertoto Cup and the UEFA Super
Cup, and subject to paragraph 17.18 below, a player may not play UEFA
club competition matches for more than one competing club in the course of
the same season. A substitute player who is not fielded is entitled to play for
another club competing in the same season’s UEFA club competitions,
provided that he is registered with the UEFA administration in accordance
with the present Regulations.
Conditions for Registration: List A
17.08 No club may have more than 25 players on List A during the season. As a
minimum, places 18 to 25 on List A (eight places) are reserved exclusively
for “locally trained players” and no club may have more than four
“association-trained players” listed in places 18 to 25 on List A. List A must
specify the eight players who qualify as being “locally trained”, as well as
whether they are “club-trained” or “association-trained”. The possible
combinations that enable clubs to comply with the List A requirements are
set out in Annex VIII.
17.09 A “locally trained player” is either a “club-trained player” or an “association-
trained player”.
17.10 A “club-trained player” is a player who, between the age of 15 (or the start of
the season during which he turns 15) and 21 (or the end of the season during
which he turns 21), and irrespective of his nationality and age, has been
registered with his current club for a period, continuous or not, of three entire
seasons (i.e. a period starting with the first official match of the relevant
national championship and ending with the last official match of that relevant
national championship) or of 36 months.
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17.11 An “association-trained player” is a player who, between the age of 15 (or the
start of the season during which the player turns 15) and 21 (or the end of
the season during which the player turns 21), and irrespective of his
nationality and age, has been registered with a club or with other clubs
affiliated to the same national association as that of his current club for a
period, continuous or not, of three entire seasons or of 36 months.
17.12 If a club has fewer than eight locally trained players in its squad (i.e. in places
18 to 25 on List A), then the maximum number of players on List A is
reduced accordingly. Furthermore, if a club lists a player in places 18 to 25
on List A who does not fulfil the conditions set out in this article, that player is
not eligible to participate for the club in the UEFA club competition(s) in
question and the club is unable to replace him on List A.
17.13 List A has to be submitted by the following fixed deadlines:
a) 8 July 2008 (24.00 CET): for all matches in the first qualifying round;
b) 24 July 2008 (24.00 CET): for all matches in the second qualifying round;
c) 7 August 2008 (24.00 CET): for all matches in the third qualifying round;
d) 1 September 2008 (24.00 CET): for all further matches as from the first
match in the group stage up to and including the final.
17.14 For the three UEFA Champions League qualifying rounds, after the above-
mentioned qualifying dates, one player on List A may be changed until 24.00
CET on the day before the relevant first-leg match, provided that the club’s
national association confirms in writing that the new player is eligible to play
at domestic level at this time.
Conditions for registration: List B
17.15 Each club is entitled to register an unlimited number of players on List B
during the season. The list must be submitted by no later than 24.00 CET on
the day before the match in question.
17.16 A player may be registered on List B if he is born on or after 1 January 1987
and has been eligible to play for the club concerned for any uninterrupted
period of two years since his 15th birthday by the time he is registered with
UEFA. Players aged 16 may be registered on List B if they have been
registered with the participating club for the previous two years without
interruption.
IX Player Eligibility
Article 17
General provisions
17.01 In order to be eligible to participate in the UEFA club competitions, players
must be registered with UEFA within the requested deadlines to play for a
club and fulfil all the conditions set out in the following provisions. Only
eligible players can serve pending suspensions.
21
17.02 Each club is responsible for submitting an A list of players (“List A”) and a B
list of players (“List B”), duly signed, to its national association for verification,
validation, signature and forwarding to UEFA. These lists must include the
name, date of birth, shirt number and name, nationality and national
registration date of all players to be fielded in the UEFA club competition in
question.
17.03 The club bears the legal consequences for fielding a player who is not
named on list A or B, or who is otherwise not eligible to play.
17.04 The UEFA administration decides on questions of player eligibility.
Challenged decisions are dealt with by the Control and Disciplinary Body.
17.05 Players must be duly registered with the national association concerned in
accordance with the national association’s own rules and those of FIFA,
notably the FIFA Regulations for the Status and Transfer of Players.
17.06 A player registered with one national association may only be registered with
another national association once the latter has received the International
Transfer Certificate from the national association that the player is leaving.
17.07 Excluding the three rounds of the UEFA Intertoto Cup and the UEFA Super
Cup, and subject to paragraph 17.18 below, a player may not play UEFA
club competition matches for more than one competing club in the course of
the same season. A substitute player who is not fielded is entitled to play for
another club competing in the same season’s UEFA club competitions,
provided that he is registered with the UEFA administration in accordance
with the present Regulations.
Conditions for Registration: List A
17.08 No club may have more than 25 players on List A during the season. As a
minimum, places 18 to 25 on List A (eight places) are reserved exclusively
for “locally trained players” and no club may have more than four
“association-trained players” listed in places 18 to 25 on List A. List A must
specify the eight players who qualify as being “locally trained”, as well as
whether they are “club-trained” or “association-trained”. The possible
combinations that enable clubs to comply with the List A requirements are
set out in Annex VIII.
17.09 A “locally trained player” is either a “club-trained player” or an “association-
trained player”.
17.10 A “club-trained player” is a player who, between the age of 15 (or the start of
the season during which he turns 15) and 21 (or the end of the season during
which he turns 21), and irrespective of his nationality and age, has been
registered with his current club for a period, continuous or not, of three entire
seasons (i.e. a period starting with the first official match of the relevant
national championship and ending with the last official match of that relevant
national championship) or of 36 months.
22
17.11 An “association-trained player” is a player who, between the age of 15 (or the
start of the season during which the player turns 15) and 21 (or the end of
the season during which the player turns 21), and irrespective of his
nationality and age, has been registered with a club or with other clubs
affiliated to the same national association as that of his current club for a
period, continuous or not, of three entire seasons or of 36 months.
17.12 If a club has fewer than eight locally trained players in its squad (i.e. in places
18 to 25 on List A), then the maximum number of players on List A is
reduced accordingly. Furthermore, if a club lists a player in places 18 to 25
on List A who does not fulfil the conditions set out in this article, that player is
not eligible to participate for the club in the UEFA club competition(s) in
question and the club is unable to replace him on List A.
17.13 List A has to be submitted by the following fixed deadlines:
a) 8 July 2008 (24.00 CET): for all matches in the first qualifying round;
b) 24 July 2008 (24.00 CET): for all matches in the second qualifying round;
c) 7 August 2008 (24.00 CET): for all matches in the third qualifying round;
d) 1 September 2008 (24.00 CET): for all further matches as from the first
match in the group stage up to and including the final.
17.14 For the three UEFA Champions League qualifying rounds, after the above-
mentioned qualifying dates, one player on List A may be changed until 24.00
CET on the day before the relevant first-leg match, provided that the club’s
national association confirms in writing that the new player is eligible to play
at domestic level at this time.
Conditions for registration: List B
17.15 Each club is entitled to register an unlimited number of players on List B
during the season. The list must be submitted by no later than 24.00 CET on
the day before the match in question.
17.16 A player may be registered on List B if he is born on or after 1 January 1987
and has been eligible to play for the club concerned for any uninterrupted
period of two years since his 15th birthday by the time he is registered with
UEFA. Players aged 16 may be registered on List B if they have been
registered with the participating club for the previous two years without
interruption.
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