That's a blow to Grenoble as Graham is sent to the bin on the brink of half-time. Machenaud will end the first half with another effort at the posts.
Racing have failed to learn from their mistakes and Grant is in terrific form with the tee and slots his fifth penalty of the day to give his side a 15-10 lead.
Not the easiest of kicks but Machenaud splits the posts and the score is 12-10 to La Rochelle with 5 minutes left in the half.
From the restart La Rochelle are penalised for not releasing and Racing will have the opportunity to reduce the deficit with Machenaud to kick.
After repeated warning Bernard Le Roux is given his marching orders and is sent to the bin for illegally slowing down the ball. Grant will have a simple enough kick to increase his sides lead.
Grant makes it three from three and La Rochelle go back in front.
Racing's discipline lets them down once more and it gives La Rochelle and Grant the opportunity for them to go back in front.
Racing get the first try of the game with Chavancy going over. Fantastic play from Camille Gerondeau stealing the ball from the ruck and he runs clear and offloads to Chavancy who touches down. Machenaud converts and Racing take the lead.
TRY RACING!
Racing look to build some phases but Charteris pass to Dumoulin is poor and the centre knocks on. Scrum to Grenoble.