It was the hosts who took the early lead in Toulouse, Pierre Bernard kicking two penalties in the opening five minutes and that start was made even better when Brice Mach touched down after 11 minutes.

Dough Howlett responded with a try for Munster which O'Gara converted but it was Castres who struck next.

Pierre-Gilles Lakafia scored his side's second try which Bernard converted but Munster had the last say with an O'Gara penalty just before the break.

Peter O'Mahony went over for a try after just five second half minutes and O'Gara's form with the boot continued as he converted.

Bernard kicked a further penalty but another converted try from the visitors, courtesy of Will Chambers handed Munster the lead.

With nine minutes remaining Bernard levelled the scores with a penalty and that's have the match remained until O'Gara struck in the 80^th minute to seal another classic victory.