Visiting the fourth-tier (League Two) team Grimsby Town, coach Ruben Amorim still fielded an almost full-strength squad. Expensive newcomers like Benjamin Sesko and Matheus Cunha, along with stars such as Manuel Ugarte, Diogo Dalot, and Harry Maguire, all featured in the lineup. Despite this, the Red Devils showed a poor performance against Grimsby Town. Within just 30 minutes, MU fell behind 2-0. Between the 22nd and 30th minutes, Charles Vernam and Tyrell Warren scored consecutively against MU.
In the second half, coach Ruben Amorim brought on Bruno Fernandes, Ryan Mbeumo, Matthijs de Ligt, Mason Mount, and Joshua Zirkzee to try to change the game. Thanks to these substitutions, MU improved and pulled a goal back to 1-2 through Bryan Mbeumo in the 75th minute.
In the 88th minute, defender Harry Maguire scored to equalize for MU at 2-2.
The match ended in a 2-2 draw, leading to a tense penalty shootout.
During the shootout, Andre Onana gave the Red Devils an early advantage by saving the third penalty. However, Matheus Cunha missed his attempt in the fifth round. The shootout extended to the 13th round before a winner was decided, with Grimsby Town unexpectedly triumphing 12-11.
This shocking defeat to a fourth-tier team made Manchester United’s start to the new season even worse. In the Premier League, the Red Devils have yet to win after the first two rounds, recording one loss and one draw.