That is according to club legend Jimmy Floyd Hasselbaink.
The Blues have already qualified for the Champions League by finishing third, but Hasselbaink thinks some silverware will make it a great debut season for the Italian.
"At the start of the season a Champions League place was the aim and [Sarri] has got that in finishing in third," the former Blues striker Sky Sports.
"They had the League Cup final - that they lost to Man City on penalties - and the FA Cup, where they (reached the fifth round).
"If they win the Europa League final it's been a successful season for Chelsea."