With this in mind, Cech has a lot to think about on Sunday afternoon:
“He [Van Persie] adds goals.
“If there is someone who can score goals in every game then it is clear that is another attacking option for them.
“And together with Rooney, it can be a very interesting pair. You can see they’ve been scoring goals.”
United haven’t beaten Chelsea in the Premier League at Stamford Bridge since 2002, but having won there in the Champions League recently and going close last term, United will hope their added firepower can secure the three points.