We kick off our journey towards a seventh tournament victory in our history - our most recent was in 2023 - at Blundell Park in the second round.
It will be our first meeting with the Mariners since 1948, with a place in the third round at stake.
Keep scrolling for broadcast information, team news and much more...
HOW TO WATCH GRIMSBY V UNITED
The Reds aim for a first victory of the season, after unfortunate Premier League results at home to Arsenal and in the capital at Fulham.
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