And after Opelka held his nerve on serve to edge into a 7-6 lead, the 21-year-old made the most of three match points when Wawrinka sent a weak forehand into the net.Wawrinka joins the likes of Alexander Zverev, Stefanos Tsitsipas and French Open finalist Dominic Thiem in slumping out in the opening rounds.Opelka, meanwhile, will face Robin Haase or Milos Raonic in his next match. But Opelka rallied to clinch a 7-5, 3-6, 4-6, 6-4, 8-6 victory in three hours and 13 minutes.Marathon [email protected] reaches the third round of a Grand Slam for the first time on his #Wimbledon debut after an epic five-set duel against Stan Wawrinka#Wimbledon pic.twitter.com/hiByieuxBd— Wimbledon (@Wimbledon) July 3, 2019World No. 19 Wawrinka started Wednesday’s encounter on No. 2 Court in sluggish fashion, with the American breaking serve in the 11th game. Related News Wimbledon 2019: Andy Murray relishes Serena Williams doubles pairing Stan Wawrinka became the latest big name to suffer an early exit from Wimbledon as he went down to U.S. up-and-comer Reilly Opelka in the second round Wednesday.Wawrinka, who has never won Wimbledon and has now failed to reach the third round for four straight years, looked on course for a routine win after fighting back from losing the first set. Wimbledon 2019: Sam Querrey wipes out No. 5 seed Dominic Thiem Opelka could not keep up his form in the next two sets, however, but the 2015 Wimbledon boys’ champion broke the Swiss star — seeded at 22 — again to force a fifth set.