Southampton took the lead against the run of play, Takumi Minamino providing a fine finish to stun Chelsea. Mason Mount rescued a point from the penalty spot as his team struggled to otherwise create chances.
The draw was the least of pre-match expectations, but in the end two managers cut from the same cloth cancelled each other out.
Chelsea striker Tammy Abraham was withdrawn at half-time with another ankle problem, while N’Golo Kante was perhaps lucky to escape a red card for an apparent stamp on Moussa Djenepo.
Callum Hudson-Odoi replaced Abraham at the interval for Chelsea, but was later hauled off himself, with Jorginho and Hakim Ziyech pitched into action late on.
Unless Hudson-Odoi had picked up an injury issue, this would certainly prove a bold call from Chelsea’s German manager.
Chelsea were left frustrated by the draw, especially with a demanding run of matches ahead starting with Tuesday’s Champions League clash with Atletico Madrid.
Southampton meanwhile were relieved to end that record run of league losses, that had taken in their 9-0 mauling at Manchester United.
Additional reporting by Press Association.