Barcelona attacker Antoine Griezmann admits he must do better after Saturday's 1-1 draw with Alaves.

Griezmann struck Barca's goal on the day, but concedes he should've done more.

He said "We are failing a lot, I am the first. We have to work to improve. The season is very long and we are going to improve.

"I was failing. The team needs my goals and I try to improve on that.

"I feel good, I'm enjoying it. I have a lot left, with confidence, work and humility we will improve.

"We must improve and with work it will be like that. We need calm because the campaign is long."