Leicester head coach Richard Cockerill was left fuming after his side were held 41-41 by Gloucester at Welford Road.
Tigers boss - Performance not acceptable
Leicester head coach Richard Cockerill was left fuming after his side were held 41-41 by Gloucester at Welford Road.
The Tigers led by 14 points with 18 minutes left, but the visitors claimed the highest-scoring draw in Premiership history when fly-half Freddie Burns converted an interception try by centre Eliota Fuimaono-Sapolu with the game's final kick.
Cockerill said: "There were that many mistakes and loose passes, I don't know whether some of the players thought it was a testimonial match.
"We have got to be better than that. We set our standards high, and that wasn't good enough.
"Next week will be an uncomfortable week for some. At 14 points clear, we made mistakes and let them run through us, and we ended up conceding five tries."
Cockerill added: "Gloucester proved they are a good side. If we end up meeting them again in the play-offs, it will be a tough game.
"We go to Newcastle now next Friday, and we've got to be better than we were today. That performance is not acceptable.
"It was a bizarre game - I don't think I have ever seen a Premiership game quite like it."
Gloucester head coach Bryan Redpath now has to rally his troops for a difficult Tuesday night home fixture against Heineken Cup semi-finalists and play-off rivals Northampton.
Courage
Redpath said: "I am delighted with the result. I thought our courage to keep playing at 34-20 behind was outstanding.
"I can't question the players' work ethic. We had the mindset coming here that if it was on, then we would play.
"We kept playing, and we didn't shrink. But we have got to keep working hard, and we will be back in training tomorrow morning ahead of the Northampton game.
"Tuesday night is massively important for us, and while there were a lot of good things today, we have got to defend better than that."