The Diamonds are second bottom of the entire Football League, and manager Barry Hunter is expecting a big test when Grimsby travel to Nene Park on Saturday
He told the club website: "In my opinion they are arguably the strongest team in our League.
"They've got good players all over the pitch in every position and they play this league very, very well. We know its going to be a really tough game but we're looking forward to it.
"Grimsby will have one eye on going top of the league and maybe they'll be thinking that they are well cemented into the play-offs and that will give us the edge.'