Former Tottenham boss Harry Redknapp says Chelsea striker Diego Costa can put Arsenal to the sword this weekend.

Redknapp wrote for the London Evening Standard: "Didier Drogba isn't around to terrorise Arsenal anymore but they have to prove Diego Costa has not become their new bogeyman.

"Costa came on for Chelsea in their EFL Cup tie at Leicester and his movement was unbelievable. He was virtually unplayable — some of the runs he made were superb and Leicester couldn't cope with it.

"When he is focused, he has got that great ability of bending his runs brilliantly and timing his changes of direction to create space.

"These days, he is looking like the kind of world beater he can be and Arsenal have it all on to keep him quiet if he turns up at Emirates Stadium on Saturday in that kind of mood."