Alex Michelsen of the United States upset third-seeded Lorenzo Musetti of Italy 3-6, 7-6 (4), 6-4 on Thursday in the third round of the National Bank Open.

Alex Michelsen rallied for a 3-6, 7-6 (7/4), 6-4 upset victory over third-seeded Lorenzo Musetti on Thursday, converting his lucky seventh match point to reach the fourth round of the ATP Toronto Masters.

Alex Michelsen of the United States reached the quarterfinals of the men’s National Bank Open in Toronto with a straight sets win over countryman Learner Tien.