The Brazilian saved three set points in the first-set tiebreak en route to winning her first hard-court singles title against Zheng Qinwen, and then partnered Veronika Kudermetova to win doubles.

The tennis world has been critical of Sorribes Tormo and partner Marie Bouzkova, who were seen as pushing for a default after an errant shot from Kato struck a ball girl in doubles on Sunday.

After tournament referee Remy Azemar and Grand Slam supervisor Wayne McEwen went to Court 14 to look into what happened, Kato and her partner were disqualified.