Overview
- Grimsby led 2-0 through Charles Vernam in the 22nd minute and Tyrell Warren in the 30th minute before United rallied.
- Bryan Mbeumo pulled one back on 75 minutes and Harry Maguire equalised on 89 minutes under the League Cup’s no–extra-time format.
- The tie finished 12-11 on penalties, with the decision coming on the 26th kick after Mbeumo missed the decisive attempt.
- Matheus Cunha failed to convert a potential match-winning penalty during the initial round of five kicks.
- Numerous Grimsby supporters invaded the pitch after the shootout as United exited the competition despite fielding several star players.