Ben Shelton defeated Joao Fonseca 6–3, 3–6, 6–3 in the quarter-finals of the ATP 250 Munich tournament on clay on 17 April 2026, causing an upset against the pre-match favourite. Fonseca entered as the odds-on favourite at 1.44, with Shelton priced at 2.69, yet the American recovered from dropping the second set to secure the decisive third frame and advance. The result represents a significant scalp for Shelton on the clay circuit and suggests he possesses the resilience to trouble seeded opponents in the latter stages of tournaments. His progression to the semi-finals will provide further momentum as he continues to build his clay-court credentials.