Scott McDonald once again scored for Celtic but it wasn't enough for a win. The Hoops were up against Dundee United at Tannadice Park and had a great opportunity to extend their lead at the top of the table after second-placed Rangers drew the day before.
When McDonald headed from close range in the 24th minute for his 16th goal of the season, it seemed as though the title race may have been over.
But Dundee bounced back with two goals through Francisco Sandaza in the 47th and 58th minutes.
It took a late effort from Celtic's Lee Naylor to grab a point and restore their lead of three points at the head of the Scottish Premier League table.