Aberdeen have signed former Dundee United midfielder Mark Kerr on a two-year deal after he passed a medical on Monday morning.

The 26-year-old, who has now trained with his new team-mates for the first time, will be allocated squad number eight, previously utilised by Barry Nicholson who left for Championship side Preston.

Kerr, who played for Falkirk prior to moving to Tannadice five years ago, joins Gary McDonald, Bertrand Bossu and Sam Stewart as manager Jimmy Calderwood's other close-season signings.