At Wimbledon last month, Damian Steiner reached a career pinnacle when he worked as the chair umpire for a Grand Slam men’s singles final for the first time.

It turned out to be a classic duel, with Novak Djokovic saving two match points and defeating Roger Federer, 7-6 (5), 1-6, 7-6 (4), 4-6, 13-12 (3), in the longest singles final in Wimbledon history.

By all accounts, Steiner, a 44-year-old umpire from Argentina, acquitted himself well during that tense match, but he has since been fired by the ATP Tour, the men’s circuit, which has been his primary employer.

Steiner was dismissed on Aug. 15 because he violated tour policies by giving a series of interviews to the news media in Argentina without authorization from the ATP. He could not immediately be reached for comment.