New year, same me,” wrote the American, as she seemed to reignite the pair’s bitter rivalry after the US’s victory over Poland at the United Cup.

America’s Danielle Collins is hoping that she and Poland’s Iga Swiatek will ‘move on’ from their past on-court trouble and become ‘good competitors’. Both players were involved in a heated argument on the court during the Paris Olympics in the quarterfinal of the singles category.

Collins was not finished after the frosty handshake at the net. The American tennis star took a victory lap on Instagram. She changed her profile picture to the face she made when shaking Swiatek's hand. Then, she removed all doubt with an Instagram story.