Peterborough United will make the trip to Lincolnshire for a friendly in July.
Peterborough United will travel to Grimsby Town for a pre-season friendly on Saturday 27th July (3pm) with this game part of the deal that saw Siriki Dembele move to the ABAX Stadium last summer.
The Mariners finished 17th in the Sky Bet League Two table last term and include former Posh goalkeeper James McKeown in their ranks.