Manchester United are reportedly monitoring the progress of Everton star Romelu Lukaku.

The Belgian international is currently the joint top-scorer in the Premier League with 15 goals this season.

According to De Telegraaf, the Red Devils' scouts are keeping a close eye on the former Chelsea man with Louis van Gaal eager to add more firepower in the striking department this month.

German giants Borussia Dortmund are also said to be eyeing a winter deal for the talented marksman.

United are currently fifth in the league standings following their 2-1 win over Swansea City at Old Trafford last week.