While the goal will come as a relief to the Spain worldwide after a hard start to the season, it was in the build-up that Sarri's strategy really came to the fore.
This was only Barkley's fifth league start since his £15-million (US$20 million) transfer from Everton in January, a move that had been put on hold from the previous August while the player continued his recovery from a serious hamstring injury. I want to keep improving and scoring goals.
"Maybe I need to think about that, some people only think about goals".
"I don't think about personal targets, I'm happy as long as we win". 18 against Vidi in the Europa League on Thursday and a further 12 today, all without profit suggests there is work to be done on the training ground.
He told Sky Sports: "We played a very good match".
- Barkley became the first Englishman to score and assist in a Premier League game for Chelsea since Frank Lampard in December 2013.
Chelsea have overcome a number of tough tests in the early stages of the season, and have proven their title credentials by going unbeaten in the first eight matches of the competition.
With the look of things, Chelsea are now a major contender in the EPL alongside Liverpool and Man City.
Unafraid to introduce an altogether different playing style than that which was employed by his fellow countryman, Sarri's Chelsea have demonstrated an attacking verve that leaves them looking a decent outside bet for Premier League success.