Aberdeen have completed the loan signing of Rotherham United goalkeeper Adam Collin.

The 31-year-old has joined the Dons until the end of the season.

The Englishman will challenge Scott Brown for the number one jersey following the departure of Danny Ward last weekend.

Goalkeeper Ward, who has started every game for Aberdeen this season, was recalled by parent club Liverpool last season.

Collin played a prominent role in helping Rotherham reach the Championship in 2014 with a heroic display in the play-off final, saving two penalties in a shoot-out victory over Leyton Orient.

But he has made only two appearances for the Millers this season and hopes the move to Pittodrie will get his career back on track.