Tennis star is accused of 'a new low for sportsmanship' after her 'disgusting' acts on the court led to her opponent having a panic attack

Hungarian player Amarissa Toth has shocked the tennis world with a series of ‘disgusting’ acts at the clay-court Budapest Open that left her veteran opponent Zhang Shuai in tears.

Shuai, a former world No.22, retired from the event in floods of tears after her 20-year-old opponent erased a ball mark on the clay court following a disputed line call. 

The Chinese player had hit a crosscourt forehand that appeared to land on the line but was called out by the line judge, leaving Shuai incensed…