Celtic clinched all three points in a 2-1 win over St Johnstone at Celtic Park on Saturday.
Goals from Teemu Pukki and Charlie Mulgrew ensured Neil Lennon's side closed the gap at the top.
The hosts went into the interval two goals up but were unable to add to their tally after the break.
However, there were a few nervous moments as substitute Liam Caddis grabbed a goal for the visitors with 10 minutes remaining.
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