The Wimbledon tournament opens, as per tradition, with the first match featuring the reigning men's singles champion. It's Jannik Sinner's turn to take the first step onto Centre Court at the All England Club, where he boasts a 20-4 record in grass-court play and is hoping to capture his fifth Grand Slam title. His opponent is Serbian Miomir Kecmanovic. Along the way, Sinner could face either Casper Ruud or Luciano Darderi (no. 14 in the main draw) in the round of 16, or Daniil Medvedev in the quarterfinals. Darderi, no. 14 in the main draw, debuts against Ethan…