Ospreys extended their lead in Pool 2 of the Challenge Cup to an impressive 14 points after they beat Lyon 47-7 at the Liberty Stadium.
It took 31 minutes for them to break the deadlock, with the away side in fact taking the lead when Curtis Browning crossed on 16 minutes.
Dan Baker and Kieron Fonotia scored for the Ospreys before the turnaround though as the Welsh team went into half-time 14-7 to the good.
Hanno Dirksen continued to build on those foundations when he crossed two minutes after the break before James King scored on 47 minutes.
Ospreys were now cruising and their fifth and sixth tries came in the next ten minutes through Dan Evans and Justin Tipuric for a 40-7 buffer.
Steve Tandy's men weren't done though and there was one further try before the end, with replacement Adam Beard going over to make it 47.
Tries: Baker, Fonotia, Dirksen, King, Evans, Tipuric, Beard
Cons: Biggar 6
Yellow Card: King
Yellow Card: Paulo, Porical
Ospreys: 15 Daniel Evans, 14 Keelan Giles, 13 Kieron Fonotia, 12 Ashley Beck, 11 Hanno Dirksen, 10 Dan Biggar, 9 Thomas Habberfield, 8 Dan Baker, 7 Justin Tipuric, 6 James King, 5 Alun Wyn Jones, 4 Rory Thornton, 3 Ma'afu Fia, 2 Sam Parry, 1 Nicky Smith
Replacements: 16 Scott Baldwin, 17 Paul James, 18 Rhodri Jones, 19 Adam Beard, 20 Sam Underhill, 21 Brendon Leonard, 22 Josh Matavesi, 23 Sam Davies
Lyon: 15 Romain Loursac, 14 Thibaut Regard, 13 Paul Bonnefond, 12 Theo Belan, 11 Jone Tuva, 10 Mike Harris, 9 Nicolas Durand, 8 Curtis Browning, 7 Deon Fourie, 6 Dylan Cretin, 5 Maselino Paulino, 4 Felix Lambey, 3 BJ Botha, 2 Ti'i Paulo, 1 Sami Mavinga
Replacements: 16 Vincent Giudicelli, 17 Alexandre Menini, 18 Stéphane Clement, 19 Tai Tuifua, 20 Didier Tison, 21 Pierre-Louis Barassi, 22 Jerome Porical, 23 Augustin Figuerola
Referee: Craig Maxwell-Keys (England)
Assistant Referees: Greg Macdonald (England), Phil Watters (England)