Christopher Nkunku stepped off the bench and combined with debutant Jadon Sancho to help Chelsea to a 1-0 win at Bournemouth.
Evanilson saw his penalty saved and Marcus Tavernier and Ryan Christie both hit the woodwork.
But with just four minutes of normal time remaining, Chelsea’s substitutes linked up to grab maximum points for Enzo Maresca’s side.
Sancho stepped in off the left flank before playing Nkunku into the box, where the forward spun and finished into the bottom corner for his first league goal of the season.
The late winner capped a night of drama on the south coast, with the match also seeing a record 14 yellow cards dished out.
Chelsea have now won both of their away games this season and are up to seventh in the early Premier League table.
Bournemouth are 11th, with their unbeaten start to the campaign over.
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