Josko Gvardiol and Erling Haaland scored the goals in a 2-0 win.
Brendan Rodgers hailed one of the “fathers” of Celtic’s recent success after James Forrest reproduced his vintage form with a match-winning double at Dens Park.
Leeds edged out Hull 18-12, giving Rhinos outside hopes of the playoffs while Hull face a squad overhaul in the coming months