All the talk at the Liberty Stadium had been about the big-name departures, but with European champions Leinster in town on Friday - Ospreys scrumhalf Rhys Webb ensured it was the new generation that hogged the headlines.
After spending years in the shadow of British Lion Mike Phillips and with new signing Kahn Fotuali'i away with Samoa at the World Cup - No.9 Webb relished his opportunity to shine.
Against a Leinster side, which was obviously stripped of a host of international star names away on international duty with Ireland in New Zealand, Webb inspired the Ospreys to an opening day 27-3 victory.
The Ospreys will be disappointed not to get the bonus point after fluffing a series of attacking lineouts in the Leinster 22 after weathering an early second half storm by the visitors
Meanwhile Ulster got their Pro12 season off to a flying start as they recovered from conceding an early try to complete a convincing 28-14 win over Glasgow at Ravenhill.
Darren Cave, Paul Marshall and captain Chris Henry all scored tries for Ulster in response to Troy Nathan's early score but the home side were denied a bonus point as Glasgow kept them out late on.
Ulster will now turn their attentions to next week's trip to Aironi while Glasgow will try to bounce back against reigning champions Munster.
A young Edinburgh side were put to the sword by Cardiff Blues who picked up a bonus point 38-15 win in their opening fixture of the RaboDirect Pro12.
The visitors' experience and clinical edge in attack proved the difference as they romped away to the win having trailed midway through the second half.
Edinburgh created several chances with Tim Visser coming close but the home side eventually had to settle for five Greig Laidlaw penalties.
And Tom James' try seven minutes from time guaranteed the bonus point for the visitors who showed they will be a force to be reckoned with despite the losses of Jamie Roberts and Sam Warburton among others to the Welsh World Cup effort.
Ospreys 27-3 Leinster
Tries: Dirksen, Webb, Tipuric
Cons: Biggar 3
Ospreys: 15 Richard Fussell, 14 Kristian Phillips, 13 Andrew Bishop, 12 Ashley Beck, 11 Hanno Dirksen, 10 Dan Biggar, 9 Rhys Webb, 8 Jonathan Thomas, 7 Justin Tipuric (captain), 6 Tom Smith, 5 Ian Evans, 4 Ian Gough, 3 Cai Griffiths, 2 Mefin Davies, 1 Duncan Jones.
Replacements: 16 Matthew Dwyer, 17 Ken Dowding, 18 Joe Rees, 19 James King, 20 Morgan Allen, 21 Tom Isaacs, 22 Matthew Morgan, 23 Sonny Parker.
Leinster: 15 Isa Nacewa, 14 Fionn Carr, 13 Eoin O'Malley, 12 Luke Fitzgerald, 11 David Kearney, 10 Mat Berquist, 9 John Cooney, 8 Rhys Ruddock (captain), 7 Dominic Ryan, 6 Kevin McLaughlin, 5 Devin Toner, 4 Damian Browne, 3 Jamie Hagan, 2 Richardt Strauss, 1 Heinke van der Merwe.
Replacements: 16 Aaron Dundon, 17 Jack McGrath, 18 Jack O'Connell, 19 Mark Flanagan, 20 Leo Auva'a, 21 Cillian Willis, 22 Ian Madigan, 23 Brendan Macken.
Referee: Peter Fitzgibbon (Ireland)
Ulster 28-14 Glasgow Warriors
Tries: Cave, Marshall, Henry
Cons: Humphreys 2
Pens: Humphreys 3
For Glasgow Warriors:
Pens: Weir 3
Ulster: 15 Adam D'Arcy, 14 Craig Gilroy, 13 Darren Cave, 12 Nevin Spence, 11 Ian Whitten, 10 Ian Humphreys, 9 Paul Marshall, 8 Chris Henry (captain), 7 Willie Faloon, 6 Pedrie Wannenburg, 5 Dan Tuohy, 4 Lewis Stevenson, 3 Jerry Cronin, 2 Andy Kyriacou, 1 Paddy McAllister.
Replacements: 16 Nigel Brady, 17 Conor Carey, 18 Adam Macklin, 19 Neil McComb, 20 Robbie Diack, 21 Ian Porter, 22 Paddy Jackson, 23 Peter Nelson.
Glasgow Warriors: 15 Stuart Hogg, 14 Tommy Seymour, 13 Rob Dewey, 12 Troy Nathan, 11 Colin Shaw, 10 Duncan Weir, 9 Colin Gregor, 8 Ryan Wilson, 7 Chris Fusaro, 6 James Eddie, 5 Rob Harley (captain), 4 Tom Ryder, 3 Mike Cusack, 2 Pat MacArthur, 1 Jon Welsh.
Replacements: 16 Finlay Gillies, 17 Ryan Grant, 18 Ed Kalman, 19 Nick Campbell, 20 Rory Pitman, 21 Henry Pyrgos, 22 Peter Horne, 23 Federico Aramburu.
Referee: Leighton Hodges (Wales)
Edinburgh 15-38 Cardiff Blues
Pens: Laidlaw 5
For Cardiff Blues:
Tries: James, Pretorius, Hobbs 2
Cons: Sweeney 3
Pens: Sweeney 4
Edinburgh: 15 Jim Thompson, 14 Lee Jones, 13 Simon Webster, 12 Matt Scott, 11 Tim Visser, 10 Phil Godman, 9 Greig Laidlaw (captain), 8 David Denton, 7 Roddy Grant, 6 Sean Cox, 5 Steven Turnbull, 4 Grant Gilchrist, 3 Lewis Niven, 2 Steven Lawrie, 1 Kyle Traynor.
Replacements: 16 Andrew Kelly, 17 Robin Hislop, 18 Jack Gilding, 19 Esteban Lozada, 20 Hamish Watson, 21 Chris Leck, 22 Gregor Hunter, 23 John Houston.
Cardiff Blues: 15 Chris Czekaj, 14 Richard Mustoe, 13 Casey Laulala, 12 Gavin Evans, 11 Tom James, 10 Ceri Sweeney, 9 Richie Rees, 8 Andries Pretorius, 7 Martyn Williams, 6 Michael Paterson, 5 Deiniol Jones, 4 James Down, 3 Scott Andrews, 2 T Rhys Thomas (captain), 1 Sam Hobbs.
Replacements: 16 Rhys Williams, 17 Nathan Trevett, 18 Ryan Harford, 19 Paul Tito, 20 Maama Molitika, 21 Lewis Jones, 22 Gareth Davies, 23 Dafydd Hewitt.
Referee: Leo Colgan (Ireland)
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