Pari - Frederic Michalak scored a penalty four minutes from time to keep champions Toulon in the hunt for the European Champions Cup knock-out rounds on Sunday.
The France international came off the bench to give Toulon a 12-9 victory over dogged Bath, who deserved more from a game they lit up with some ambitious and at times scintillating running rugby.
George Ford kicked two drop goals for the visitors but they came up short and a second straight Pool 5 defeat leaves them with little chance of making the last eight.
Toulon are now just two points behind group leaders Wasps, who must still come to the south of France.
The first half was far more entertaining than the scoreline suggested after Eric Escande scored a pair of penalties in response to Ford knocking over one and adding a drop goal in what had been an enjoyable match.
Ford knocked over another drop goal early in the second period as an adventurous Bath side frequently attacked from deep.
Toulon started to get their own running game into gear and Escande levelled matters for a third time.
But after resisting a long period of Bath pressure, during which time Ford narrowly knocked another drop goal wide, Toulon steam-rollered up the other end and won the decisive penalty.