Ian Keatley was "absolutely gutted" after Munster suffered a Heineken Cup semi-final defeat in France for the second year in a row.
Munster went down 24-16 to Toulon in Marseille, 12 months on from losing to Clermont at the same stage of the competition.
Stand-off Keatley's opposite number Jonny Wilkinson kicked 21 of Toulon's points, which proved just enough despite Munster's Simon Zebo scoring the game's only try.
Ruing the errors that gave Wilkinson regular opportunities to show his kicking prowess, Keatley admitted: "We didn't do all the things that we said we would do. We gave them a few penalties and easy 'outs'.
"When they kicked off to us, we didn't exit well. I think we managed to give away six or nine points just from not getting out of our danger area.
"They kept the scoreboard ticking over with Jonny. We knew he was going to be immense with the boot and he did it again today."
'Ugly to watch'
Munster head coach Rob Penney, who is moving to Japan at the end of the current campaign, pointed to those costly penalties that left his side with an uphill task.
"We just couldn't control possession well enough," he said. "We made too many errors.
"We were thinking we were finishing over the top of them (in the second half) but it just wasn't to be.
"We'll look over this game and it will be a bit ugly to watch - we were our own worst enemies today which is really unfortunate. The guys tried hard but we just weren't clinical enough."