Reilly Opelka, playing on a wild card in his first tournament in almost two years, continued his impressive comeback by reaching the semifinals of the ATP grass-court tournament in Newport. The American, who has fallen to 1,188th in the world rankings due to injuries, defeated Mackenzie McDonald in straight sets, hitting 27 aces in the process. He will now face Alex Michelsen, who also advanced to the semifinals with a win over Aleksandar Kovacevic.