Saracens have signed former Waratahs hooker Dave Porecki on a short-term deal as cover for the World Cup.
Aviva Premiership champions Saracens will open the defence of their title at home to the Sale Sharks on October 17.
Scotland have added Edinburgh duo Dougie Fife and Ben Toolis to their pre-World Cup training squad.
Defending champions Toulon have been drawn in a brutal pool with Bath, Leinster and Wasps in the 2015/16 Champions Cup.
Wasps have completed their ninth signing of the off-season with prop James Johnston joining the club from Aviva Premiership rivals Saracens,
Saracens have appointed Heath Harvey as their new chief executive following the departure of Edward Griffiths.
Stuart Barnes pays tribute to the domestic successes of Glasgow Warriors and Saracens.
Saracens have confirmed that David Strettle will join Clermont next season after the England wing agreed a three-year contract with the Top 14 club.
More of the games that matter on Sky Sports
24 hours of Sky Sports. Only £6.99
Up to 50% off Baa-Baas tickets
For all the latest news, features and videos
We've a host of top class rugby union action