Serena Williams has been fined $17,000 for three violations after losing her cool during her loss in the US Open women's final to Naomi Osaka.

Already down a set after losing 6-2 in the first to Osaka, the 23-time Grand Slam champion was in tears during an argument with chair umpire Carlos Ramos after being given two warnings, one for coaching and one for smashing her racket, after Osaka broke her serve.

Williams went on to call Ramos a thief and demanded an apology from the 47-year-old umpire.

After the match, the Flushing Meadows crowd booed Ramos, who was escorted off the court. Chair umpires are usually given a gift during the trophy ceremony, but that wasn't the case on Saturday.

Opportunity missed:Serena diminished herself with behavior at US Open

More:Naomi Osaka shows grace, class in first Grand Slam victory

Fans and writers have criticized the handling of the situation, with our own Christine Brennan asking the following: Was Serena Williams treated differently than a man would have been treated for doing exactly what she did and saying exactly what she said?

While many have sided with Williams over the last 24 hours, her actions went against everything she stands for as a role model in sports.

Williams lost the match 6-4, 6-2, missing yet another chance to win a record-tying 24th Grand Slam title.