Is that like when cricketers rub the ball on their trousers?

(Agent Pr1ck llǝɯs ǝɥʇ sʇI ˙ǝɔɐld sᴉɥʇ ǝʇɐɥ l, Sun 11 Jul 2021, 20:24, archived)

Exactly
And whatever tennis players do with their spare balls
( H.B.Mupps, Sun 11 Jul 2021, 20:32, archived)