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Celtic moved back nine points clear of Rangers at the top of the Scottish Premiership with a 10th successive win over Aberdeen.
Graeme Murty's new-look Rangers showed Derek McInnes what he was missing as they claimed a 2-0 win over Aberdeen at Ibrox.
Celtic stretched their lead at the top of the Scottish Premiership to eight points with an emphatic 3-0 home win over second-placed Aberdeen.
Derek McInnes will remain Aberdeen manager after Rangers failed to prise him away from Pittodrie.
Ten-man Rangers clung on for a 2-1 victory over Aberdeen after Ryan Jack's Pittodrie return ended in red card controversy.