Lions full-back Leigh Halfpenny missed a late penalty against his former club as Scarlets narrowly lost their Champions Cup opener in Toulon.
Toulon dominated the first half with a powerful display that saw Eric Escande and Guilhem Guirado cross for tries.
But a revitalised Scarlets had Toulon rocking after the break as Johnny McNicholl and Halfpenny both went over.
Halfpenny could have won it against the club that released him in June but his difficult penalty went just wide.
Scarlets got off to the worst possible start when scrum-half Aled Davies received the ball from a line-out and spun the ball out, but failed to spot opposite number Escande lurking.
The Toulon nine plucked the ball out of the air and raced off under the visitors’ posts.
Anthony Belleau kicked the simple conversion and added a penalty soon after, when Halfpenny was penalised for holding on in the tackle.