LONDON -- Chelsea goalkeeper Petr Cech had to leave training early Tuesday with a calf problem, putting his status for the start of the English Premier League season in doubt.

Cech, 28, underwent scans Tuesday afternoon and Chelsea stated on its website it was "awaiting the results." Cech tore a muscle in his calf last season in a Champions League match and was forced to miss five games.

The English Premier League season starts in mid-August. Chelsea opens against West Brom on Aug. 14.