sub in

From sub (from substitute) + in.

sub in (third-person singular simple present subs in, present participle subbing in, simple past and past participle subbed in)

1. (especially sports) To replace something or take someone's place,
   • 25 November 2022, Jonathan Tannenwald, “U.S. dominates England for long stretches, but plays to 0-0 tie at World Cup”, in The Philadeplhia Inquirer‎:

     As the Medford native was replacing McKennie, Shaq Moore ran off the bench to sub in for Dest. And England manager Gareth Southgate made another move while he could, Marcus Rashford for Bukayo Saka.

• sub out