DC: John Terry
With Gary Cahill poor against Newcastle, John Terry could be brought back into the Chelsea team against Porto and deserves the chance to prove he can still cut it at this level.
DC: Kurt Zouma
Doing well since becoming more of a regular for Chelsea this season, Kurt Zouma is surely in line for another start in this important fixture.
MC: Nemanja Matic
A world class defensive midfielder, Nemanja Matic will surely improve his form and could make a difference in a tough game like this.
Impressive when he came on as a substitute to grab a goal against Newcastle, Ramires arguably looks a better bet than the off-form Cesc Fabregas at the moment.