Wales and Ospreys scrum-half Rhys Webb is facing a huge battle to play again this season.
Watch the video above then vote for your PRO12 Try of the Month for a chance to win two tickets to a PRO12 Club of your choice for the 2016/17 season.
Leigh Halfpenny's replacement in the Wales Rugby World Cup squad Eli Walker has dropped out injured with Ross Moriarty now in.
A last-minute try from South African CJ Stander earned Munster a 20-18 away win over Ospreys in the PRO12.
Watch all the highlights from the Guinness PRO12, including the Scarlets win over defending champions Glasgow.
Ulster beat Ospreys 28-6 to claim maximum points in their opening PRO12 clash at the Kingspan Stadium.
Ospreys have confirmed the signing of Oliver Tomaszczyk on a short-term contract.
Glasgow Warriors will kick off the defence of their GUINNESS PRO12 title at home to the Scarlets, live on Sky Sports.
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