Gabriel Diallo, 23, has surprised the tennis world by putting on a stellar show at the ongoing Madrid Open. The young Canadian has reached his maiden Masters 1000 quarterfinal at the Spanish Capital.

MADRID - Montreal’s Gabriel Diallo, who earned entry into the Madrid Open as a lucky loser, advanced to the fourth round Tuesday with a 2-6, 6-4, 6-4 comeback win over Britain’s Cameron Norrie.