 Quarterfinal action at Wimbledon today. World No. 1 Yannick Sinner and Danielle Medvedev even had a set of piece with Medvedev up a break in the third, although Sinner appears to be battling some dizziness at the moment. Defending champ Carlos Alcaraz and American Tommy Paul have just taken the court. On the women's side, Donna Vekic defeated qualifier Lulu Sun in three sets to advance to her first slam semifinal.