David Silva will be out for a "few weeks" with a hamstring injury, according to Manchester City boss Pep Guardiola.
Silva picked up a hamstring injury against Chelsea in their 2-0 loss to the Blues on Saturday and was substituted off in the second-half.
Guardiola has insisted the problem is "not too big" but said the midfielder will definitely be out of City's Champions League group game against Hoffenheim on Wednesday night.
Silva has played in 14/16 of City's league games this season and all five of their Champions League matches.
For the rest of December, City face Everton, Crystal Palace, Leicester City and Southampton in the Premier League - and also play Leicester in the Carabao Cup quarter-final on the 18th.
Silva joins City's rather sizeable injury-list; with Claudio Bravo, Danilo, Benjamin Mendy, Kevin de Bruyne and Sergio Aguero - but Guardiola did confirm that Aguero has "a chance" of featuring against Everton at the weekend.