Manchester United is currently having one of the worst season, their performance has been so poor, I won’t really say Chelsea are having one of their worst season, their performance isn’t really poor this season just that they are not consistent this season, they are currently in 5th position which is not bad.  Manchester United is currently at the bottom of the table, but I don’t think Manchester United will focus on premier league matches, Manchester United main aim is to win the Europa league this season so they won’t want to make use of their main players in the premier league, so I don’t really think the match is going to be a difficult one for Chelsea.