Crystal Palace boss Patrick Vieira said it's 'difficult to accept' the 2-1 defeat to Chelsea on Saturday afternoon.
Odsonne Eduoard gave the home side the lead, only for Pierre-Emerick Aubameyang to equalise seven minutes before the break.
Former loan star Conor Gallagher returned to Selhurst Park for the first time since his time at the club and scored a last-minute winner after coming off the bench.
