Rangers have confirmed the signing of Dundee United striker Jon Daly.
St Mirren defenders Sean Kelly and Jason Naismith have signed new one-year contracts with the club.
Paulo Sousa's agent has played down speculation that his client is looking for an imminent move back to England.
The Portuguese tactician is currently in charge of Hungarian outfit Videoton, but has previous experience of British football with Swansea, QPR and Leicester.
With both the Blackburn and Bolton jobs vacant, Sousa's name has been mentioned but his agent says he is more than happy with Videoton.
"I've read the news, that's all," Vladan Filipovic told Nemzeti Sport.
"It's not surprising that after the Europa League success he's linked with teams but it's not more than a gossip. I don't think it would be a reality that he leaves Videoton."