Jonny Hayes: Celtic sign winger as Ryan Christie returns to Aberdeen on loan

Jonny Hayes scored against Celtic in the Scottish Cup final

Celtic have signed winger Jonny Hayes from Aberdeen on a three-year deal for an undisclosed fee.

The 29-year-old Republic of Ireland winger scored against Celtic in the 2-1 Scottish Cup final defeat last season.

Hayes, who was under contract at Pittodrie until 2019, had also been linked with English Championship outfit Cardiff City.