West Ham United manager Alan Pardew has hailed his Chelsea counterpart, Jose Mourinho, for being able to keep his star-studded Blues squad highly motivated.
Mourinho has guided Chelsea to back-to-back Premiership titles since his arrival in England and Pardew has the utmost respect for the Portuguese.
He said: "His team carry lots of superstars and are always highly motivated.
"It's difficult to say he's underrated - Jose will certainly say that, I'm sure - but you can't manage a team like Chelsea and have all those superstars unless you are a great manager.
"It's very difficult to manage players with large egos, fantastic ability and huge salaries. And he motivates them and gets them into a team structure that wins most games.
"The problem you have is that if you're a superstar player you expect to play.
"He's carrying 18 of those.
"Some players at clubs can almost accept the fact they are not in the starting eleven, but are ready to come in and show their professionalism when called upon.
"At the big clubs, especially Chelsea when they are paid very large salaries, it must be difficult to manage."