Chelsea's all-time record goalscorer Frank Lampard grabbed a late equaliser that gave Manchester City a point at Etihad Stadium.
Lampard, who spent 13 years with the Blues, came off the bench to sweep home from James Milner's ball late on and rescue a point for 10-man City.
The reigning champions were trailing Chelsea after Andre Schurrle's close-range finish.
Frank has now scored against a record 39 different Premier League clubs.
City will feel they deserved a point after battling back into contention following the second-half sending off of defender Pablo Zabaleta following a tussle with Chelsea striker Diego Costa.
The former England international refused to celebrate his goal and looked to be on the verge of tears at the final whistle as he received a standing ovation from Chelsea's fans, who set aside their disappointment to acclaim the player who served them so wonderfully.
Jose Mourinho's side remain three points clear at the top of the table despite losing their 100% Premier League record - although there will be disappointment at conceding two points so late on against a City side down to 10 men.