Jessica Pegula was eliminated in the quarterfinals at the Miami Open, losing to Elena Rybakina.
She demanded a review of a serve that appeared to go through the net, but was ruled a let.
What happened?
The American tennis player was frustrated with the call, believing it to be a fault.
Videos confirmed the ball went over the net, not through it.
The incident
Jessica Pegula's frustration was evident as she lost the game.
Her language was picked up by the broadcaster, prompting an apology from Sky Sports commentator Jonathan Overend.
The aftermath
Coco Gauff remains in the tournament, advancing to the semifinal.
Frances Tiafoe will face Jannik Sinner for a spot in the final four.
Jessica Pegula was also eliminated in the doubles quarterfinals, playing alongside Storm Hunter.
They lost in a gruelling third-set tiebreaker.
The bigger picture
The Miami Open has seen several upsets, including Carlos Alcaraz's elimination by Sebastian Korda.
Korda has since lost to unranked Spaniard Martin Landaluce.
The tournament continues, with Coco Gauff making a bold claim about being the fastest tennis player on the tour.
She stated she would be pretty good in a 100-meter race, and definitely the fastest over 200 meters.
Jessica Pegula's frustration was understandable, given the controversy surrounding the serve.
The American tennis player will look to bounce back from the loss.
The Miami Open has been full of surprises, with several top players being eliminated.
Jessica Pegula's loss was a notable one, given her high ranking and expectations.