Ronald Koeman insists he needs more from his players to ensure they build on a “positive season” of progress.
The Blues went down to a 3-1 defeat at Arsenal in their final match of the 2016/17 campaign.
Despite the Gunners being reduced to 10 men on 14 minutes when Laurent Koscielny was dismissed for a foul on Enner Valencia – which followed Hector Bellerin’s eighth-minute opener – the Blues could not capitalise on their numerical advantage.
Alexis Sanchez put the hosts 2-0 up just before the half-hour mark. And although Romelu Lukaku gave the Toffees hope with a 58th-minute penalty, Aaron Ramsey sealed Arsenal’s victory in injury-time.