Lampard will face his former teammates this weekend for the first time since signing with Man City.
Schalke 04 held Chelsea 1-1 while Man City suffered a 1-0 loss to Bayern Munich.
Diego Costa continued his stunning start to life at Chelsea with a hat-trick in a 4-2 win over Swansea City
Manager Jose Mourinho says he built his side to accommodate powerful Brazil-born Spanish striker Diego Costa.
The Spaniard was signed just before the end of the transfer window after an unhappy spell at Chelsea.
Chelsea’s Diego Costa needs to learn to show respect to opponents after he goaded Everton players.