One of the biggest victories at the United States Open on Saturday didn’t happen on a tennis court. It was even sweeter than a great sports performance, and much more satisfying, too.

It materialized when the Italian player Fabio Fognini was kicked out the door.

Fognini — the No. 22 seed in singles who lost in the first round, but had advanced to the third round in doubles — was provisionally suspended from playing in the Open after an X-rated rant against a female chair umpire during his first-round match on Wednesday.

He unleashed a barrage of Italian curses upon Louise Engzell, a veteran umpire, calling her, among other things, a whore. Fined $24,000 for unsportsmanlike conduct, he now faces much more serious punishment.

On Saturday, the Grand Slam Board, comprising officials from tennis’s four Grand Slam events, said in a news release that it was investigating to see if Fognini had committed a major offense during the match.