Arsenal are assessing a back injury to new signing Kim Kallstrom, the day after the 31-year-old midfielder moved to the Emirates Stadium on a loan deal until the end of the season.
Reports in Sweden on Saturday morning suggested the former Lyon man had suffered a long-term injury during his first training session, claiming he could miss a large part of his temporary stay at Arsenal.
But it appears the seriousness of Kallstrom's injury is yet to be determined by the club, who will be hoping to have him available as soon as possible with fellow midfielders Jack Wilshere and Aaron Ramsey also injured and Mathieu Flamini serving a four-game ban.
Arsene Wenger's side enter an important month in their search for silverware and, after a home game against Crystal Palace on Saturday, face a daunting schedule including crunch Premier League, FA Cup and Champions League matches.
Crystal Palace signing Scott Dann has spoken for the first time about his move to the club.
"It's nice to finally put pen to paper and get it done. I'm looking forward to the next three and half years," he said in an interview with Crystal Palace.
He revealed that it was only late last night that he received a call from his old club Blackburn to confirm a fee had been agreed with Crystal Palace to enable his transfer, adding that he was looking forward to playing in the Premier League.
"It's something I've done before and having the opportunity to come and play for the next couple of years and hopefully do well and help the team - it's obviously something I really wanted to do and I'm glad it's all gone through," he added.