Chelsea have revealed that Frank Lampard picked up a "minor" calf injury on Wednesday, but remain confident he will be fit to face Bolton.
Lampard went for a scan after picking up the knock in training but fears that the 32-year-old would be facing another lengthy spell on the sidelines were allayed by the club on Thursday morning.
A statement on the club's website read: "Frank Lampard is suffering from a minor calf problem which will be monitored over the next few days.