Jan 8 (Reuters) - Liam Rosenior knows ‌he has no time to waste as he begins the task of ‌transforming Chelsea from Premier League also-rans to title contenders and the ‌Englishman has told the squad he wants to hit the ground running.

Rosenior, who replaced Italian Enzo Maresca, joined Chelsea on Tuesday from Racing Strasbourg and will take charge of his first game on ‍Saturday when the London club travel to Charlton Athletic ‍in the FA Cup.