Kallstrom out for a month

Arsenal manager Arsene Wenger revealed on Sunday that new loan signing Kim Kallstrom will be out for around a month with a back injury sustained before he joined the club.
Wenger reacted to a glut of injuries in central midfield by signing the 31-year-old Sweden international from Spartak Moscow on the final day of the January transfer window on Friday.
However, reports soon emerged that Kallstrom had hurt his back playing beach volleyball and might not be able to feature for Arsenal for around six weeks.
Wenger played down the gravity of Kallstrom's injury but admitted that it would keep him sidelined until late February at the earliest.