Charlton midfielder Dean Sinclair has joined League 2 club Grimsby on a one-month loan and is set to make his debut for the Mariners at home to Morecambe on Saturday.

Sinclair, 24, became former manager Alan Pardew's ninth signing when the Addicks paid Barnet £125,000 for him in July, 2007.

But he failed to establish himself in the side and spent period out on loan, the last being for Cheltenham earlier this season.