Castres on the attack now, looking to break through this Racing attack.

Lovely kick from Sexton and he puts Racing 6 ahead. 20 minutes gone.

Penalty to Racing after Castres penalised once more at the breakdown. Sexton goes for the sticks.

Castres on the front foot at the moment, Racing defence doing well to keep the away side out.

Racing into the lead through a Jonathan Sexton penalty. Castres penalised at the breakdown and Sexton makes no mistake from the kick.

Great start to this game, being played by both sides at a frantic pace.

Conversion wide from Sexton from the touchline.

What a response from Racing! Argentinan winger Juan Imhoff get's over for the hosts to bring them level straight away.

The ref has awarded the try! Good work from the Castres pack early on and it's the hooker who gets the score for the away side.

Castles are over early on but we've gone to the TMO to check.