Video: Rangers 0 Celtic 2
Celtic struck a couple of second-half goals to win the first Old Firm derby of the season at Rangers.
Midfielder Tom Rogic gave the visitors the lead with a rising twelve-yard finish soon after the restart.
Fifteen minutes later Leigh Griffiths accepted Patrick Roberts' pass and drove low past Wes Foderingham
The Hoops remain two points clear at the top of the table and now eight above their biggest rivals.
Video Link: SPFL