Richard McEvoy claimed his maiden European Tour title after a dramatic finish to the Porsche European Open in Hamburg.The 39-year-old sunk a 20-foot putt for birdie on the final hole to secure a one-shot victory ahead of Renato Paratore, Christofer Blomstrand and German amateur Allen John.McEvoy had started the final day in a share of the lead with Bryson DeChambeau, but successive bogeys late in his round saw the American fall out of contention.His victory makes McEvoy the first player this season to win on the Challenge Tour and European Tour in successive weeks after his triumph at the Le Vaudreuil Golf Challenge last week.McEvoy told Sky Sports: “It was a roller coaster ride big time today. But I fought hard, I believed and even at the last I overpowered my caddie to lay it up and give myself the best opportunity to make birdie and managed to do it.“I’ve tried to enjoy my golf as much as possible. Not that I haven’t been but I just needed to that little bit more and it’s just come up proper trumps.”McEvoy’s final round of 73, which saw him finish on 11 under par, was far from perfect, but proved enough to see off his closest rivals.McEvoy and DeChambeau were level through 11 holes and even back-to-back bogeys at the 12th and 13th could not knock his momentum, as DeChambeau’s late collapse kept the Englishman in control.A bogey on the 17th drew McEvoy back into a four-way tie for the lead, but his nerveless final putt secured an impressive victory.In contrast, DeChambeau twice landed in the water on the final hole, with his triple bogey eight dropping him to a share of 13th place after a six-over 78.And it was what he did on the final green that raised eyebrows within the golfing community.After the final putt was sank, DeChambeau appeared to make a swift getaway, touching McEvoy's hand before leaving the green. Not great sportsmanship.Safe to say, golf fans were not impressed with the lack of sportsmanship on show.

Later that night, DeChambeau took to Instagram to send an apology to McEvoy, acknowledging what he did was wrong.