Dundee United midfielder Paul Paton has signed a new deal that will keep him at Tannadice until 2017.
The 27-year-old former Queen's Park player, capped for Northern Ireland, joined the club from Partick Thistle last summer.
Former Queen's Park winger Aidan Connolly has extended his stay until the end of next season and ex-Celtic youngster Scott Lochhead, an attacking midfielder, has signed a deal until 2016.
Boss Jackie McNamara told the club website: "Paul has been the model of consistency since joining United. He has played a big part in helping us reach where we are and his desire and work rate are infectious - he deserves the security this extension brings.
“Aidan has really improved his level of performance since the start of pre-season and has shown he is ready to make the step up to the first team.
“Scott is someone we knew about and I was delighted when he became available. It is pleasing that yet another good young Scottish prospect wants to join Dundee United."