Goals from Tom Rogic, Callum McGregor, Moussa Dembele and Olivier Ntcham earned Celtic the easiest of Scottish Cup victories over Rangers.
Celtic remain on course to win three trophies this season after scoring two second-half penalties to clinch a comfortable 4-0 victory over 10-man Rangers in their Scottish Cup semi-final.
Graeme Murty's side defended poorly as their rivals - the runaway Scottish Premiership leaders who have already won the League Cup - went 2-0 up through Tom Rogic and Callum McGregor in the first half and then made the result emphatic thanks to penalties from Moussa Dembele and Olivier Ntcham, while Ross McCrorie was sent off.