Jose Mourinho has claimed that his Chelsea squad need to remain grounded if they are to retain the Premier League title this season.

The Blues cruised to their first title in five years last term under Mourinho, and the Portuguese coach has called for his players to keep their focus this term.

"There is something I have to start working with my players," Mourinho told BT Sport. "I have experience of winning eight titles, so I know what it is like after you have won the title.

"To follow success with success is not so easy. We at the club, not just me, but the players, everybody in the different areas, we must find the right attitude and the right mentality because to deal with success is not always easy.

"I don't know what winning at all costs means. To win, you can do it once by not being good, or by being lucky, but to win so many times, you cannot do it without top quality."

Mourinho's side travel to West Bromwich Albion this weekend.