Manchester United have chosen not to appeal their Carabao Cup elimination, despite discovering that Grimsby Town fielded an ineligible player during their dramatic penalty shootout defeat last week.

Technical Breach Goes Uncontested

Midfielder Clark Oduor, who came on as a substitute in Grimsby’s 12-11 penalty victory, was registered one minute past the deadline ahead of the match. While the EFL fined Grimsby £20,000 (£10,000 suspended) for the oversight, United declined to pursue further action within their five-day appeal window.

"The Board determined that the issuing of a fine followed precedent," stated the EFL, citing similar cases involving Liverpool, Accrington, and Sunderland.

Risk of Reputational Damage

Sources suggest United feared a "lose-lose" scenario: seeking reinstatement could have drawn criticism for exploiting a technicality, while accepting the result preserves dignity despite the disappointing exit. The club made no official comment on their decision.

Grimsby’s Explanation

The League Two side attributed the registration error to a "computer problem" and emphasized their transparency in self-reporting the breach. They’ve since revised internal procedures to prevent recurrence.

While some fans recall harsher punishments in past cases—like West Ham’s replay order in 1999 or Barnsley’s FA Cup expulsion in 2021—the EFL noted Oduor’s status as a properly contracted player differentiated this incident.

United now turn their focus to league play, leaving Grimsby to prepare for a third-round clash against Sheffield Wednesday.