The Latest from Wimbledon (all times local):
Ali Nili, a 37-year-old Iranian-born American, will be the chair umpire for Sunday's men's final at Wimbledon.
Nili has worked at all four major tournaments, but the match between Roger Federer and Novak Djokovic on Centre Court will be his first Grand Slam final.
Ali works in the IT department for the ATP.
It's the final day at Wimbledon, the day of the men's championship match.
Seven-time champion Roger Federer will take on defending champion Novak Djokovic in a rematch of last year's final, which the top-seeded Serb won in five sets.
Play is due to start at 2 p.m. on Centre Court.