Atletico have only dropped six points from winning positions in La Liga this season
The raining champions Real Madrid had gone top on Saturday after beating Barcelona 2-1 who is currently sitting third place on the log.
Yannick Carrasco put Atletico ahead when he latched onto a loose ball and tapped home but Cristian Tello levelled with a cushioned finish.
Veteran keeper Claudio Bravo made two fantastic saves in injury time to deny Angel Correa a winner for Atletico.
Diego Simeone’s Atletico – who were 10 points clear at the end of January – have only won three of their past 11 games in all competitions and look to be running out of steam.
Joao Felix went off in the first half to add to their problems, with fellow forwards Luis Suarez and Moussa Dembele already sidelined. England right-back Kieran Tripper also limped off late on.