Mason Mount labelled new Chelsea signing Raheem Sterling as a "winner" and "experienced" pro, who can fill a leadership void and help the Blues compete for trophies on all fronts.

Sterling arrived from Manchester City for a reported fee in the region of £45million on Wednesday, as Chelsea announced their first signing since Todd Boehly's consortium acquired the club.

The England international joins his new Chelsea team-mates in the United States on their pre-season tour, having signed a five-year deal with Thomas Tuchel's side.

Only Riyad Mahrez (24) and Kevin De Bruyne (19) scored mores times in all competitions than Sterling (17) last season for City, but Mount says it is not just the forward's ability that will be vital for Chelsea.

"He's a top guy, such an experienced player, top class pro," Mount told Sky Sports.

"I've obviously been lucky to play with him over the last couple of years with England where he has captained the team at times, and he is someone who has been there for a very long time.

"When did he make his debut, 17, 18? So, he's a top player and I've learnt a lot from him over the last few years.

"For him to be joining us it is only going to bring our levels higher, he's definitely someone who strives for high levels to win and that's what we want.

"We want those players around this group and I'm very excited to see him and for him to be here."

Andreas Christensen and Antonio Rudiger head the outgoings at Chelsea this transfer window, with Romelu Lukaku joining Inter on loan and Barcelona reportedly interested in Cesar Azpilicueta.

With numerous key figures departing Stamford Bridge, Mount believes Sterling can take a leadership role for Tuchel's side as they chase domestic and European glory.

"I think obviously we have lost a few that are leaders, and I think he is coming in and he will be someone that is going to lead, be a big presence," Mount added.

"He'll be a big personality, that's what he's like but he's only going to make us better so I'm very excited.

"He's a winner and us as a team, we want to keep striving for that so hopefully we can win some things together."

Sterling may get his first action in a Chelsea shirt against Club America on Sunday before follow-up fixtures against Charlotte FC and rivals Arsenal.

Tuchel's side then conclude their pre-season preparations with a clash against Udinese, before their Premier League opener at Everton on August 6.