#2 Recent history is in their favor
Chelsea and Manchester United are high ranking clubs in the upper echelons of English football, so whenever the pair meets, fireworks are always guaranteed to explode and it is an area for either club to express supreme superiority over the other.
However, in recent seasons, Chelsea has been the dominant of the pair in matches at Stamford Bridge, winning each of the last four home fixtures, including two 1-0 victories in the FA Cup and a 4-0 thumping on Jose Mourinho's return to the Bridge in 2016.
Home form is always a deciding factor in marquee fixtures like this, and with Chelsea’s particularly strong record in recent years against Manchester United at home, The Blues would be confident of pulling off another victory against one of their biggest rivals.