Thomas Tuchel's decision to introduce Kepa Arrizabalaga prior to Chelsea and Liverpool's Carabao Cup penalty shootout certainly divided opinion.
It proved to be a substitution that backfired for the Londoners as Kepa failed to save any of the Reds' 11 spot-kicks and then blazed the decisive penalty over the bar.
Tuchel previously enjoyed success with this tactic in the UEFA Super Cup final back in August, having defeated Villarreal 6-5 on penalties after bringing on the Spanish shot-stopper in the 120th minute of the match.
