West Ham boss Manuel Pellegrini says Chelsea whiz Callum Hudson-Odoi can be a future star - if he applies himself.

The youngster was finally handed his full Premier League debut in the 3-0 win over Brighton in midweek, but has no guarantee of starting against West Ham in Monday's London derby.

“I think [a] very good player. He's just starting his career," Pellegrini said. "I always say about those young players starting that it's not so difficult to arrive, a lot of good players with technical conditions arrive to play in the first team.

"But after that you must keep it. At the beginning any little good thing a young player does, people will say how good they are. But after that they will demand more.

“The second step for a young player will demonstrate the divide, which will be top players and which will not.

“I think that he has all the condition to be a top player. So it will depend on the mentality and ambition where he can arrive."