Everton suffered their first away Premier League defeat since losing at Newcastle in November, ending their nine-game unbeaten run on the road.
Only against Leeds (35 from 1946-2001) have Everton had a longer winless away run in the top flight than they have at Chelsea.
Nigerian forward was in action for the toffees last night, but was subbed off in the early minutes of the second half.
Iwobi was the culprit in one of the two Chelsea goals Everton conceded,
Kai Havertz’s shot was turned in for an own goal by Ben Godfrey for Chelsea’s opener in the first half. The Germany international then won a penalty, which Jorginho converted, to maintain Thomas Tuchel’s unbeaten record as Chelsea boss.
Everton will host Burnley next on Saturday.