Aberdeen have the chance to return to the top of the Premiership when they play St Johnstone in Perth on Friday night.
Celtic took over at the summit after beating Motherwell 4-0 in midweek - Aberdeen's game with Ross County was rearranged to February 7 - but Ronny Deila's men are not in action until Saturday, when they travel to Dingwall.
The Dons won 2-0 at Pittodrie when the sides met at Pittodrie on New Year's Day, thanks to goals early and late from David Goodwillie and Cammy Smith.
St Johnstone came out on top at McDiarmid Park back in August, Steven MacLean scoring the winner 10 minutes from time.
Saints are sixth in the table and are looking to bounce back from a 2-0 defeat at Inverness on Tuesday while Aberdeen's last outing saw them hit back for a 3-3 draw against Dundee.
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