Manchester City captain Vincent Kompany could be facing a spell on the sidelines after being substituted during his side's 1-0 victory over Leicester on Saturday with an apparent hamstring injury.
Kompany, 28, pulled up 15 minutes from full time clutching his hamstring, and was replaced by Martin Demichelis.
75. Into the final quarter of an hour. Looks bad for @VincentKompany who has pulled up clutching his hamstring.
- Manchester City FC (@MCFC) December 13, 2014
76. SUB CITY: Sadly the end of the returning captain's game as @VincentKompany makes way for Martin Demichelis.
- Manchester City FC (@MCFC) December 13, 2014
The centre-back had only just returned to City's squad after missing their past three games with a hamstring complaint, and his latest setback could hand manager Manuel Pellegrini a further problem heading into a busy festive period.
Edin Dzeko was due to start against the Foxes, but injured himself in the warmup with Pellegrini forced to start Jose Angel Pozo up front instead.
Fellow City forwards Stevan Jovetic and Sergio Aguero are sidelined for the Premier League champions, though David Silva returned to the starting XI for the first time since October.
Aguero will likely be out until the New Year with knee ligament damage sustained against Everton, while Yaya Toure will soon be leaving for the Ivory Coast's African Nations Cup campaign in January.