Castres away form hints at a tough assignment for Chiefs
Castres warmed up for their Champions Cup clash with Exeter Chiefs at Sandy Park by claiming an impressive fourth away win in the Top 14 this season, a 16-6 triumph in Grenoble.
A fourth minute try from Marc-Antoine Rallier and Benjamin Urdapilleta's conversion had the French champions off to a flying start, before the out-half added three more penalties to his tally by the end.
Yellow cards for Antoine Tichit and Christophe Samson in each half threatened their dominance but they held out for he win.
Exeter also showed their class by beating Pat Lam's Bristol Bears 14-9 at Sandy Park.
A Santiago Cordero try just before half-time and a second from Sean Lonsdale 15 minutes from time proved crucial as three Ian Madigan kicks kept Bristol in touch. Exeter are now four points clear of Saracens at the top of the table, and they face Castres on Sunday (1.0)
For Munster it's a trip to Kingsholm to take on fourth-placed Gloucester, who will be a touch concerned after consecutive defeats to Sale and Leicester.
Their 34-16 reversal against Tigers last weekend was their fifth loss in 12 league games this season.