Celtic moved to within two points of Rangers at the top of the cinch Premiership after Liel Abada's last-gasp strike gave them a 1-0 win over Dundee United at Parkhead.
Rangers slipped up with a 3-3 draw against Ross County at Dingwall earlier on Saturday, but Ange Postecoglou' s side spent most of the afternoon frustrated by their disciplined visitors.
However, with seconds remaining of the 90 minutes and the Hoops down to 10 men, stand-in skipper Nir Bitton having seen red in the 81st minute, Abada fired in a dramatic winner.
