Chelsea failed to regain top spot in the Premier League from Manchester United as they conceded a late equaliser at Swansea.
Victory looked a formality for Chelsea as they protected the lead given to them by a flicked Victor Moses header.
But Pablo Hernandez beat Petr Cech from the edge of the area two minutes from time to rescue a point for the Swans.
Gary Cahill, whose header set up Chelsea's goal, then blocked Danny Graham's late surge towards goal.
Hernandez's goal gave Chelsea no time to react and ended an unsettling week for the Blues following their accusation of "inappropriate language" against referee Mark Clattenburg in last Sunday's 3-2 defeat by United.
The home side were often better in possession than the visitors, but their lack of incisiveness in the final third gave no reason to suggest a late rally was on the cards.
