Defender Gavin Gunning has completed his move to Dundee United, the SPL club have confirmed.
Gunning, 20, who spent the second half of last season on loan at Motherwell, has signed a three-year contract, subject to international clearance.
The Republic of Ireland under-21 international visited Tannadice this week and was convinced to join United by manager Peter Houston after being released by Blackburn in the summer.
Houston said: "I am thrilled to capture Gavin's signature. He is exactly the type of player we try to bring to Dundee United - he is young, athletic and hungry.
"He can play either left-back or central defence and having seen his performances last season I know he can do a job in the SPL. It was important that we moved to bring a central defender to the club and to get someone of Gavin's calibre is particularly exciting.''
Gunning enhances Houston's options in defence after Scott Severin's triple leg break last week.