Bridgend coach Dennis John is backing Munster to finish top of Heineken Cup Pool Four, following their 40-6 demolition of his team.
John's Welsh side conceded five tries at Musgrave Park in a game which also saw four Bridgend players sin-binned and another sent off.
But having already played Castres away this season, he reckons the Irish side have got what it takes to come out on top, in what is likely to be the group decider in the New Year.
John said: "I've always been impressed by Munster and the way they keep things simple and direct.
"Munster are more physical than Castres and they have just that bit more pace, especially at full-back and down the flanks.
"It will be a very interesting confrontation but I reckon Munster will just shade it."
French referee Didier Mene issued yellow cards to number eight Richard Bryan, former Lions centre John Devereux, out-half Craig Warlow and flanker Jamie Ringer, as well as sin-binning Munster's Marcus Horan and Jim Williams.
And on top of that Bridgend scrum-half Jason Hewlett was sent off for stamping on Munster prop Horan.
John said: "We were still in it at half-time when the score was 13-6. But the red mist came down in the second half and it seemed to affect some of our players.
"I won't comment on the referee's performance until I see the video. But this is the first time we have had someone sent off in three years and we picked up only six yellow cards in the whole of last season."