The Mariners will face Premier League Champions Leicester City.
The Draw for the EFL Trophy has been made and the Mariners will face Premier League Champions Leicester City, Sheffield United and Walsall in Northern Group H.
The new-look format sees one invited team in each of the sixteen groups, with the top two from each group progressing to round two of the competition. Each team will face each other once in the group stages, either home or away, with the invited team playing one of their three group fixtures at their first team stadium, playing their other two away from home.
We will bring you more news when it arrives . .