Venus Williams has lost her first Grand Slam match in two years in three sets.

Venus Williams loses her first-round match at the US Open to Karolina Muchova in three sets. ESPN BET Sportsbook is owned and operated by PENN Entertainment, Inc. and its subsidiaries ('PENN'). ESPN BET is available in states where PENN is licensed to offer sports wagering.

After a tough two-hour matchup and a cheering crowd, tennis star Venus Williams falls short to Karolína Muchová at the U.S. Open. "I didn't win today but I'm very proud of how I played," she said. NBC’s Emilie Ikeda reports for TODAY on all the action.