Manchester United manager Jose Mourinho will be taking some tasks from Anthony Martial and Marcus Rashford, and heap it on the shoulders of striker Romelu Lukaku.

Just like Paul Pogba, so much will be expected of the Belgian international when the season starts and the most important of all is to deliver goals.

Lukaku, who completed his 75 million pound ($97 million, 85.5m euro) transfer to Old Trafford on Monday, could make his first appearance in a United shirt in Saturday's US tour match against the Los Angeles Galaxy.

The 24-year-old's arrival at United reflects the club's difficulties in front of goal last season, when they were often unable to convert dominant performances into wins, drawing more games -- 15 -- than any other team in the league.

Asked what he expected Lukaku to bring to United, Mourinho replied: "What will he bring us? Hopefully goals."

Lukaku's signing gives United an authentic target man, the sort of out-and-out striker Mourinho believed the squad lacked last term.

"(Lukaku)'s the kind of player that everybody knows that he's a striker," Mourinho said. "We are not speaking about a multifunctional player or a player that you can adapt, or we can create doubts about positions on the pitch. He's a striker.

"So normally strikers they score goals and the reason he's so important and he was difficult to get is exactly what he did in the Premier League."

Mourinho said Lukaku had been targeted because of his proven track record of scoring in the Premier League during spells with Everton and West Bromwich Albion.

Mourinho meanwhile said he had played little role in the transfer negotiations, phoning the player only to assure him he would be an integral part of his plans.

"The only thing I did was to call him when the situation was almost there just to guarantee him that he would be an important player in my team," Mourinho said.

The United boss also insisted he enjoyed a strong relationship with Lukaku despite reported tensions between the two during an earlier spell at Chelsea.

Mourinho had questioned Lukaku's "mentality" during their time at Stamford Bridge but on Friday said the two had remained on good terms.