Chelsea and Manchester City are chasing Atletico Madrid midfielder Koke.

The Sun says Chelsea are looking to bolster their title-winning squad with a £40m swoop for Atletico midfielder Koke this summer.

However, they will face competition from Manchester City for the 23-year-old's services. City see Koke as a replacement for Yaya Toure.

The midfielder has insisted he won't push to leave Atletico this summer.