Manchester United Lukaku ‘improved’ but mocked by Mertens over first touch Chris Burton 22:36 5/17/18 FacebookTwitterRedditcopy Comments(0) Getty Manchester United Romelu Lukaku Chelsea Tottenham Hotspur Napoli Premier League World Cup Serie A Eden Hazard A Belgium team-mate admits the Manchester United striker is laughed at in training, while Jan Vertonghen is considered more technical than Eden Hazard Romelu Lukaku has “improved a lot”, says Dries Mertens, but the Manchester United striker still sees his first touch laughed at while away with the Belgium national side.The 25-year-old striker has established a reputation as one of world football’s most fearsome frontmen over recent years, with a forgettable spell at Chelsea put firmly behind him.Goal-laden stints at West Brom and Everton earned Lukaku a £75 million ($101m) move to Old Trafford in the summer of 2017, and he has repaid that show of faith with 27 goals across all competitions. Article continues below Editors’ Picks Goalkeeper crisis! Walker to the rescue but City sweating on Ederson injury ahead of Liverpool clash Out of his depth! Emery on borrowed time after another abysmal Arsenal display Diving, tactical fouls & the emerging war of words between Guardiola & Klopp Sorry, Cristiano! Pjanic is Juventus’ most important player right now He has also become an important figure in a golden generation of Belgian talent, although his fellow countrymen can be quick to pull him up on the faults which still exist in his game.Napoli forward Mertens told RTBF of working with Lukaku: “He has improved a lot.“People are laughing at his control but he’s a boy who after training takes 20 balls and continues to train. I respect him a lot for that.”Mertens is set to be another key man for Belgium this summer at World Cup 2018, with the 31-year-old having followed up a 34-goal haul last season with another 22 efforts for Serie A title challengers Napoli this term.He is set to be joined in the fold by several other creative talents, such as Manchester City star Kevin De Bruyne and Tottenham playmaker Mousa Dembele.Eden Hazard will also be expected to provide inspiration on Russian soil, but Mertens insists that the Chelsea talisman is not the most technical player within Roberto Martinez’s ranks.He added when quizzed on that subject: “Everyone is going to think about Eden Hazard.“But I’m going to say Jan Vertonghen. He is very technical for someone tall [and playing in a] defensive position.”Mertens & Co. are set to open their World Cup campaign against Panama on June 18, before going on to face Tunisia and England in their other Group G fixtures.Before that, though, Lukaku still has one more domestic outing to take in, with Manchester United hoping to see him shake off an ankle problem in time to grace an FA Cup final clash with Chelsea on Saturday.