Thiago Monteiro will advance against Mika Petkovic in the Round of 16 at the Challenger Men Singles Porto 2 on September 2, 2026. Monteiro is ATP 275 and he reached this match after a straight sets 2-0 win over Kimmer Coppejans on August 31, 2026. Petkovic is ATP 429 and he comes off a 2-1 win over…