Serena and a tournament of firsts — how this year's U.S. Open made history

Serena Williams, of the United States, returns a shot to Ajla Tomljanovic, of Australia, during the third round of the U.S. Open tennis championships, Friday, Sept. 2, 2022, in New York. Williams' third-round defeat at by Ajla Tomljanovic had the largest audience of any tennis match in ESPN's 43-year history. (Charles Krupa/AP)

The U.S. Open tennis tournament ended Sunday and history was made, as several competitors broke ground as the firsts, while 27-year veteran Serena Williams punctuated her career by participating in what is thought to be her last match.

Serena Williams may bid the sport farewell