reverse sweep

Short definition from Wiktionary

Noun

1. 1
   A batsman's shot made by swinging the bat in a horizontal arc from leg to off, normally whilst kneeling.
2. 2
   The act of winning a match after losing every set up to the maximum number where, should you lose one more set, you would instead lose the match.

Verb

1. 1
   To play such a shot.
2. 2
   To win such a match.