second-stringer

Mane (Îngilîzî)

1. A person who plays second string. A person who is kept on a sports team as a backup in case a "first-string" player is unavailable.
2. A person who is not good enough to be considered proficient but may be useful as a backup.

Hevwate

reserve

substitute

backup

relief

standby

understudy

Werger

reserva

suplent

αλλαγή

réserve

riserva

rincalzo

reserva

Etîmolojî (Îngilîzî)

From second string + -er.