Carew was believed to have held talks with Werder Bremen regarding a move to Germany.
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Former Cliftonville striker Boyce earns his call-up after his move to German club Werder Bremen in September.
The Cameroon international, 25, suffered the injury in a Champions League match against Werder Bremen in September.
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Fifth-place Freiburg overcame Werder Bremen 3-2 at the Weserstadion while Hamburg also won -- 1-0 against Monchengladbach.
They have 26 points, four more than Werder Bremen and SV Hamburg who play on Sunday, and Schalke.
Arsenal, meanwhile, have released Portugal Under-21 midfielder Amaury Bischoff only a year after he arrived from Werder Bremen.
Former Cliftonville striker Liam Boyce earned a call-up after his move to German club Werder Bremen in September.
In the Bundesliga, Borussia Monchengladbach's European Champions League qualification hopes faded after a 2-2 draw at 10-man Werder Bremen.
Mainz drew 1-1 with Werder Bremen while Freiburg were 2-0 winners against Monchengladbach.
Werder Bremen are third on 21 points after recovering from conceding the fastest goal this season to beat Bochum 4-1.
Werder Bremen, champion in 2003-2004, is currently 14th and has finished outside the top eight in three of the past four seasons.
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On Thursday, Tottenham were drawn in the same group as holders Inter Milan, German club Werder Bremen and Dutch champions FC Twente.
In Group L , Werder Bremen stayed on top despite dropping their first points, with the German side held 2-2 away to Austria Vienna.
Stefan Kiessling scored the only goal in a 1-0 win for fifth-placed Bayer Leverkusen over Hanover, while Wolfsburg were 3-1 winners over Werder Bremen.
Rangers now move on to the last 16 where they will take on German side Werder Bremen, with the first leg at Ibrox on 6 March.
Borowski has played 157 matches for Werder Bremen since joining in 2001, scoring 21 goals, and helped them do the league and cup double in 2004.
The Nigerian started his first Champions League match for Chelsea against Werder Bremen on Wednesday, as his side qualified for the knockout stages despite losing 1-0.
Spurs kick off their campaign away to Werder Bremen on 14 September and travel to Inter on 20 October before hosting the Italian champions two weeks later.
The result left Leverkusen four points clear of Schalke and Werder Bremen, who face each other on Saturday evening, and extended their season-long unbeaten run to 16 games.
Third-placed Bayer Leverkusen dropped six points behind Dortmund after being held 1-1 at home by Wolfsburg, while Schalke went three points above Frankfurt with a 2-0 win at Werder Bremen.
German side Werder Bremen blew a two-goal lead before snatching a 3-2 victory away to Portugal's Nacional as Claudio Pizarro scored his second goal with five minutes left in Madeira.
The deserved point takes Leverkusen ahead of Werder Bremen at the top and they are six clear of Bavarian giants Bayern, who are seventh just ahead of defending champions VfL Wolsburg.
The convincing win lifted them three points clear of Werder Bremen, who had taken over at the summit on goal difference with a 2-2 draw with defending champions VfL Wolfsburg on Saturday.
In other European football action Friday, Roma saw their hopes of European qualification dented with a 4-2 home loss to Cagliari, while Werder Bremen beat Hannover 2-0 in a mid-table clash in Germany.
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Milan, knocked out of the UEFA Cup by Werder Bremen last week, will hope Beckham can help them to secure a place in the Champions League next season with coach Carlo Ancelotti under pressure for his job.
Spurs had let a 2-0 lead slip in their opening Champions League group game at Werder Bremen and allowed Twente hope of a comeback as Chadli poked in a shot after the home side failed to clear a free-kick.
Second-placed Werder Bremen can cut the gap on Jupp Heynckes' unbeaten side to one point with victory at Cologne on Sunday, having been joined on 27 points by Bayern Munich -- who defeated Borussia Moenchengladbach 2-1 on Friday night.
Eto'o, who has scored 68 goals for the Spanish side since signing from rivals Real Mallorca in 2004, will be out for up to five months after undergoing surgery to repair a torn meniscus in his right knee suffered during Wednesday's 1-1 draw against Werder Bremen.
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