Chelsea midfielder Hakim Ziyech says their preseason is set to step up a notch this weekend.

After victory a Bournemouth, Chelsea are preparing for a pair of London derbies as they're set to take part in The Mind Series, against Arsenal [away, Sunday] and Tottenham [home, Wednesday].

"We have two tough pre-season games coming up in Arsenal and Spurs now," said Ziyech.

"Those are the type of games you want to be involved in and we are looking forward to them both. Now it's important that we rest and recover before the next challenge."