“A friend of mine passed away yesterday. He was only 13 years old. This win is for him,” an emotional Cobolli said during his on-court interview.

The American will face Alex Molcan next, as Flavio Cobolli sets up a clash with the defending champion.

Cool conditions persist at the BMW Open by Bitpanda, while Shelton and Fonseca advance to the stage of the final eight of the ATP 500 clay-court tournament.