Grimsby have bolstered their hopes of avoiding League Two relegation after re-signing Dean Sinclair on loan.
The 24-year-old, who played nine games for the Mariners last season, has joined for the remainder of the season from Charlton.
Grimsby are currently six points behind third-from-bottom Cheltenham with 26 league games played.
Sinclair spent time with Barnet earlier this season and is now fit and ready to aid Grimsby's survival cause.
Meanwhile, Charlton have extended striker David Mooney's loan from Reading until the end of the season.