It was the French who caught the eye in round one with six of their eight teams winning, including Stade Rochelais and Toulon away from home.
Duhan van der Merwe scored two tries as Edinburgh defeated European Challenge Cup opponents Castres 34-21 at the Hive Stadium.
The Champions Cup is in turmoil as organisers scramble to find a window in the already crowded schedule to stage the seven matches that have been postponed this weekend.
RugbyPass looks at the weight and height of loosehead props across the Premiership, PRO14 and Top 14 to see how the leagues’ No1s and No17s compare.