Aberdeen have signed Leighton Clarkson on a four-year deal after he impressed on loan.
The 21-year-old moved to Pittodrie on loan from Liverpool last summer and immediately impressed, scoring on his Scottish Premiership debut against St Mirren
Clarkson, who had one year left on his Anfield deal, scored six goals and provided nine assists in 38 appearances as the Dons secured third place in the Scottish Premiership and Europa League football.
He is Barry Robson's second summer signing following the capture of Nicky Devlin from Livingston.
"There is no doubt Leighton had a positive impact during his time with us last season and its hugely encouraging that he has now chosen this club as his home, and the best place for his continued development," Robson said.
"He is a brilliant prospect and exactly the type of player we want here at the club. He's young, hungry, and technically very good.
