Last Updated: Thu, 26 Jul 2007 15:04
Chelsea are sweating over the fitness of midfielder Jon Obi Mikel after he picked up an ankle injury against Feyenoord.
The Nigerian international suffered a problem during the 1-1 draw against the Dutch outfit and Jose Mourinho immediately took him off as a precaution.
The injury is not thought to be serious but the midfielder may be forced to sit out the friendly clash against Scottish giants Rangers at Ibrox on Saturday.
Mikel is set to play a key role for the Blues next season and Mourinho is taking no risks with the youngster.