Wiktionary
on a pair
a. (context cricket English) Describing the status of a batsman who has made a duck in the first innings, and is yet to score in the second.
Usage examples of "on a pair".
Seated beneath the helmet, before the video screen, hands flat on a pair of subtly vibrant plates, Banner could almost&mdash.
Maggie skidded on a pair of lace panties, lost her balance and fell into the mess, smashing a bottle of liquid makeup with her knee.