Oli McBurnie's stoppage time goal gave Sheffield United a point against an abject Chelsea team at Bramall Lane.
Thiago Silva came into a changed defensive line-up for the visitors, and rewarded Mauricio Pochettino's faith by opening the scoring with a volley from a corner after 11 minutes.
However, the Blades equalised just after the half-hour mark, when Jayden Bogle made a precise strike past Dorde Petrovic in the Chelsea goal.
Noni Madueke cut inside after receiving a pass from Cole Palmer, and dispatched a left-footed strike into the Blades' net, but the Blues couldn't hold on, with McBurnie getting a draw for the Blades three minutes into stoppage time.
Here's MailSport's match ratings after Sheffield United 2-2 Chelsea:
Chelsea (4-2-3-1)
Dorde Petrovic - 5 - Not tested very often, but not able to stop Bogle's first-half goal, or McBurnie's stoppage time equaliser.
Axel Disasi - 5.5 - Moved to right-back in Pochettino's changed defence, but not able to make much of a difference.
Thiago Silva - 6.5 - Got the nod over Badiashile, and proved his selection by scoring a volley after 11 minutes from Gallagher's corner.
Trevoh Chalobah - 6 - Booked in the first half for a high boot, but otherwise solid in the centre of a change defence.
Marc Cucurella - 6.5 - Relatively untroubled at the right-hand side of the defence, until he made a cynical late challenge and got booked for his troubles.
Moises Caicedo - 5 - Made a key block to deny Brereton Diaz a golden opportunity to equalise, but otherwise struggled.
Enzo Fernandez - 6 - Another solid but not spectacular in the heart of the Chelsea team.
Cole Palmer - 6.5 - Made another of his customary contributions to the Chelsea side by turning provider for Madueke, before being replaced
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