Chelsea goalkeeper Petr Cech fell awkwardly near the end of training Wednesday, and will be out three to four weeks with a knee injury.

Cech, 29, sustained a medial ligament injury, and the English Premier League club announced Thursday it will be without the Czech Republic international for as long as a month.

He will miss matches against West Bromwich and Norwich City and possibly more. Hilario or Ross Turnbull will replace Cech, who is Chelsea's top goalie.