These days John Terry tends to leave the man marking to his partner in the middle, be it Gary Cahill or Kurt Zouma, and Valencia will really look to stretch the Blues back line.
Sakho may have more goals than his teammate but Valencia’s pace will cause Chelsea problems and we have seen on more than one occasion this season how Gary Cahill and Branislav Ivanovic can struggle when that is the case.
Valencia has ironically been linked with a £30 million switch to Stamford Bridge and will want to show that he is worth the money when the two sides meet.