Jose Mourinho joked that Romelu Lukaku "needs a big contract" with a football boot company to get back to his best goalscoring form.

Lukaku has scored one goal in 11 games for Manchester United, and missed a simple chance in the 4-2 win at Watford in the Premier League on Tuesday night.

The Belgian is currently without a boot sponsor, and appeared to colour over the Nike tick on his all-black boots on Tuesday, something Mourinho jokingly referred to after the game.

"I think he needs a big contract with big boots because at the moment he doesn't have a sponsor," Mourinho said. "He's playing with black boots, I think he needs a brand to give him the right boots and pay him the right money so he goes back to scoring.

"He finished the deal and now he's waiting for a new deal."