Munster have opened their Investec Champions Cup campaign with a defeat.
They couldn't find a way past Bath who ran out 40-14 victors at the Rec.
Edwin Edogbo and Craig Casey crossed over for the visitor's tries.
Earlier, Leinster strolled to a 45-28 bonus point win at home to Harlequins.
The Blues dominated the final quarter and scored 7 tries to open their account with a victory.
Connacht are on the road for their opening game of the Challenge Cup today.
The Westerners are in Wales to take on the Ospreys from 3:15 pm.