Harlequins and Gloucester were the winners in Thursday's Challenge Cup action.
Cardiff Blues 13-25 Harlequins
Former Wales hooker Matthew Rees was shown a red card for a nasty stamp on Nick Easter in the closing minutes of Cardiff Blues' defeat to Harlequins.
Rees can expect a call from the citing commissioner as the Welsh region were put away thanks to four tries in the second half from Harlequins.
Before kick-off there was a minute's silence to remember Jonah Lomu, who spent a brief period with the Blues towards the end of his career.
Two penalties by Rhys Patchell to one by Ben Botica were the only points of the first half, the hosts leading 6-3 at the break, before two quick tries within two minutes from Tim Visser and Ollie Lindsay-Hague put Harlequins in the driving seat, Botica's penalty making it 6-20.
Charlie Walker's score then put the result beyond doubt but the Blues did hit back with a penalty try, before Rees was sent off.
Late tries from Sam Hobbs for the hosts and England scrum-half Danny Care for the visitors ensured that Quins left the Welsh capital with a four-try bonus point.
Tries: Penalty Try, Hobbs
Cons: Patchell, Evans
Pens: Patchell 2
Red Card: Rees
Tries: Visser, Lindsay-Hague, Walker, Care
Cons: Botica 2, Swiel
Pens: Botica 2
Cardiff Blues: 15 Blaine Scully, 14 Alex Cuthbert, 13 Rey Lee-Lo, 12 Gavin Evans, 11 Tom James, 10 Rhys Patchell, 9 Lloyd Williams, 8 Josh Turnbull, 7 Sam Warburton, 6 Ellis Jenkins, 5 James Down, 4 Jarrad Hoeata, 3 Tau Filise, 2 Kristian Dacey, 1 Gethin Jenkins (c).
Replacements: 16 Matthew Rees, 17 Sam Hobbs, 18 Dillon Lewis, 19 Lou Reed, 20 Manoa Vosawai, 21 Tavis Knoyle, 22 Jarrod Evans, 23 Dan Fish
Harlequins: 15 Ollie Lindsay-Hague, 14 Charlie Walker, 13 Matt Hopper, 12 Harry Sloan, 11 Tim Visser, 10 Ben Botica, 9 Karl Dickson, 8 Nick Easter, 7 Jack Clifford (c), 6 James Chisholm, 5 Sam Twomey, 4 Charlie Matthews, 3 Kyle Sinckler, 2 Rob Buchanan, 1 Mark Lambert.
Replacements: 16 Joe Gray, 17 Joe Marler, 18 Will Collier, 19 Kieran Treadwell, 20 Dave Ward, 21 Danny Care, 22 Winston Stanley, 23 Tim Swiel
Referee: Alexandre Ruiz (France)
Assistant Referees: Laurent Cardona (France), Arnaud Blondel (France)
TMO: Jean-Marie Piraveau (France)
La Rochelle 20-33 Gloucester
Second half tries from Stevie McColl and Charlie Sharples helped Gloucester secure a valuable away win over La Rochelle.
The Premiership outfit took the lead early on thanks to the boot of Scotland captain Greig Laidlaw and a try from England number eight Ben Morgan.
Julien Audy's converted try put the hosts back in the contest but two Laidlaw penalties pushed Gloucester out to a 19-13 lead at half-time.
With a try from Jason Eaton, La Rochelle were able to snatch back the advantage after Fabien Fortassin's conversion.
But tries from first McColl and then Sharples made sure of an important win in Pool 4 on the road for the Cherry and Whites.
For La Rochelle:
Tries: Audy, Eaton
Cons: Fortassin 2
Pens: Fortassin 2
Tries: Morgan, McColl, Sharples
Cons: Laidlaw, Twelvetrees 2
Pens: Laidlaw 4
La Rochelle: 15 Charles Bouldoire, 14 Gabriel Lacroix, 13 Elliot Roudil, 12 Malietoa Hingano, 11 Alexander Northam, 10 Fabien Fortassin, 9 Julien Audy, 8 Kevin Gourdon, 7 Romain Sazy, 6 Jason Eaton (c), 5 Leo Cedaro, 4 Jone Qovu Nailiko, 3 Gagi Bazadze, 2 Benjamin Geledan, 1 Mike Corbel.
Replacements: 16 Maxime Gau, 17 Thomas Synaeghel, 18 Vincent Pelo, 19 Damien Lagrange, 20 Zeno Kieft, 21 Albain Meron, 22 Jules Lebail, 23 Martin Carre
Gloucester: 15 James Hook, 14 Charlie Sharples, 13 Bill Meakes, 12 Mark Atkinson, 11 Henry Purdy; 10 Billy Twelvetrees (c), 9 Greig Laidlaw, 8 Ben Morgan, 7 Matt Kvesic, 6 Ross Moriarty, 5 Jeremy Thrush, 4 Tom Savage, 3 John Afoa, 2 Richard Hibbard, 1 Paddy McAllister.
Replacements: 16 Tom Lindsay, 17 Yann Thomas, 18 Paul Doran-Jones, 19 Sione Kalafamoni, 20 Jacob Rowan, 21 Willi Heinz, 22 Stevie McColl, 23 Rob Cook
Referee: Marius Mitrea (Italy)
Assistant Referees: Matteo Liperini (Italy), Luca Trentin (Italy)
TMO: Carlo Damasco (Italy)