Yoann Barbet held his hands up to the mistake that led to Bristol City's first goal through Josh Brownhill but felt Brentford, over the course of 90 minutes, smashed the Robins.
Their dominant display didn't yield three points though as, after taking the lead through goals from Ollie Watkins and Neal Maupay, Bobby Reid struck in the 98th minute to steal a point for Lee Johnson's side.
And a disappointed Barbet felt the Bees were hard done by but praised City goalkeeper Frank Fielding for his fine display.
He said: “We're just disappointed about the result. I apologise for the first goal but we smashed them from the first minute to the 90th.
“In extra time, we were struggling a bit. It's hard for them to get the equaliser in the last minute after the hard work.
“They had a great keeper who kept them in the game. It's a shame but we have a chance to play on Saturday and go to Ipswich and win.”
Barbet, though, did come to the rescue of Dan Bentley after his scuffed clearance nearly gave the Robins an equaliser earlier.
He explained: “I don't know if it was in or not. I'll do my job. I was happy I saved it but then we conceded this stupid goal. It's painful but we have to learn.”
It's been a frustrating start to the season for Brentford who have picked up one point from a possible nine, despite their play deserving at least seven.
Barbet added: “We've taken one point but when you at home you want three points. I think we deserved more than a point. We'll have to look at the little details to win this kind of game.”