Paris: Two-time Wimbledon champion Petra Kvitova's comeback was cut short on Wednesday when she was dumped out of the French Open in a second round straight-sets defeat to doubles world number one Bethanie Mattek-Sands.
The 15th seed, who had only returned this week after a five-month injury absence following a stabbing by a burglar last year, littered the court with errors to lose 7-6 7-6.
The 32-year-old American, doubles winner in Paris in 2015, refused to buckle when Kvitova went 4-2 ahead.
She whipped in a series of ferocious forehand winners while also frustrating the Czech, constantly forcing her to the net to win the first set with a tiebreak.
Kvitova, who had struggled with her returns despite the American getting less than half of her first serves in, pulled herself together and rallied back from 3-1 down to force another tiebreak.
The American, however, kept her cool and watched as Kvitova surrendered on match point with her ninth double fault.