Moussa Dembele came off the bench to score a hat-trick as Celtic hit back to beat St Johnstone 5-2 at McDiarmid Park on Sunday.
Liam Henderson fired the leaders into an early lead but Keith Watson headed the equaliser and a Dedryck Boyata own goal had Saints in front at the interval.
Dembele converted a disputed penalty on the hour mark and bagged two more goals as Celtic dominated the last half hour, with Scott Sinclair also on target as Brendan Rodgers' side made it 19 straight wins in the Ladbrokes Premiership.