Forward Romelu Lukaku has claimed that some of his partnerships with his Manchester United teammates are yet to 'click' this season.

Lukaku enjoyed a fine World Cup campaign with Belgium, but the 25-year-old has contributed just four goals from 11 outings in the Premier League and Champions League since the start of August.

However, Lukaku feels that his return in front of goal will only improve once he has developed a greater understanding with some of his teammates.

At a press conference, Lukaku told reporters: "With Belgium I've been playing for 10 years, since I was 16. Players know me much more.

"Here I still think my teamwork between myself and my teammates can improve and be much better. It's something that we're working. The players need to know me and know my movement. When that starts clicking I think the results I have with Belgium will also come here."

Lukaku is expected to start when United host Juventus in the Champions League on Tuesday night.