Coco Gauff has already got support of British tennis star after demanding rule change

Coco Gauff berated the umpire for a controversial call in her French Open semi-final exit, believing it could have been prevented with a VR system in place

Coco Gauff demanded the introduction of video replays after arguing with the chair umpire during her French Open semi-final defeat. Gauff was reduced to tears over a controversial call before being knocked out by Iga Swiatek on Thursday.

The American third seed, who won her first Grand Slam at the US Open in September, missed a return on Swiatek’s serve at 2-1 up in the second set. A line judge had called ‘out’ before Gauff completed her attempt – and drama ensued when umpire Aurlie Tourte reversed the line judge’s call.

Gauff became embroiled in a heated debate with Tourte, who was adamant that the 20-year-old sensation’s shot was not affected by the call. “He called it and then I hit it. I’m a thousand per cent sure,” Gauff raged.

“If he called it before I hit it, I stop my reaction. I didn’t even finish my follow-through. They [the Court Philippe Chatrier crowd] are booing because you’re wrong.

“This is the second time this has happened. You should be ashamed. It’s a Grand Slam semi-final, know the rules of the game.”