Mohamed Salah's second half goal saw us fall to a Premier League defeat for the first time since February and our first away league defeat in 14 months.
CITY+ | SIGN UP TO ACCESS EXCLUSIVE CONTENT
Pep Guardiola's side dominated the ball and chances at Anfield, with Erling Haaland going close before and after the interval, but Alisson saved on both occasions.
Phil Foden also had a goal disallowed after a VAR review and Bernardo couldn't hide his disappointment after our first defeat of this campaign.
"We wanted to get the three points, we got out with zero, so yeah, very frustrating," he said.
"It was a physical game, we knew it. It always is here [Anfield]. We were ready for it.
"We need to watch the game to see what didn't work and what we could do better. But very frustrating and very disappointed for not getting a win here.
"It's a feeling of frustration. We gave our best, there's no doubt about that."
Watch the entire interview via the video at the top of the page.