American tennis pro Danielle Collins tells Maria Sakkari to 'shut your mouth' in heated exchange

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A second round matchup at the National Bank Open between top ranked tennis pro Maria Sakkari and Danielle Collins erupted into a heated exchange Wednesday night when Collins took issue with Sakkari seemingly spiking a ball into the crowd. 

Collins, 29, took the first set 6-4 and was leading 2-1 in the second when the exchange happened. 

Danielle Collins in action against Maria Sakkari of Greece in the second round on Day 3 of the National Bank Open Montréal at Stade IGA on Aug. 9, 2023 in Montreal. (Robert Prange/Getty Images)

Collins returned Sakkari’s serve, which had been called out, but the No. 8 ranked tennis pro then smacked the ball out of bounds into the crowd. She held out her hand as a gesture of apology, but Collins was already fired up over the act of unsportsmanlike behavior. 

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"Did you just see that?" Collins said to the chair umpire. "Did you see what happened?" 

Sakkari responded back that the ball "didn’t hit anyone," but Collins was not interested in any explanation. 

"Shut your mouth. Shut your mouth," Collins demanded.

Maria Sakkari in action against Danielle Collins in the second round on Day 3 of the National Bank Open Montréal at Stade IGA on Aug. 9, 2023 in Montreal. ( Robert Prange/Getty Images)

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The two continued to exchange words before the umpire signaled for both of them to move on. 

The match continued on and Collins advanced with a 6-4, 6-2 victory. She and Sakkari appeared to put the tense interaction behind them as they shook hands at