Yet another chance came for the Republic of Ireland international when a cushioned pass from substitute Ki Sung Yong put him through.

BBC: Glenn Lovvens scores Celtic's opener

The arrival of the trio on the final day of the transfer window comes after the signing of FC Seoul's Ki Sung-Yong, Thomas Rogne from Stabaek, Brondby's Morten Rasmussen and Jos Hooiveld from AIK Stockholm.

BBC: Celtic sign Fulham's Kamara, Braafheid and Well's Slane

With just over one minute on the clock, Celtic opened the scoring when Ki Sung-Yong delivered a low free kick back into the St Johnstone penalty area from wide on the right and Stokes fired in from 18 yards.

BBC: Emilio Izaguirre