Bristol flanker Marco Mama has joined Aviva Premiership new-boys Worcester on loan until the end of February.
Aviva Premiership champions Saracens will open the defence of their title at home to the Sale Sharks on October 17.
English clubs say they will allow their players to compete at next summer's Olympic Games as part of Great Britain's Sevens team.
European Challenge Cup holders Gloucester will face local rivals Worcester Warriors in the 2015-16 competition.
Dewi Morris reflects on a remarkable Championship play-off between Worcester Warriors and Bristol.
Worcester secured a dramatic Premiership return after drawing 30-30 with Bristol to win their play-off on aggregate.
Worcester director of rugby Dean Ryan admitted he was “shocked” as his team secured a spectacular return to the Premiership
Dewi Morris is expecting Wednesday's second leg of the Championship play-off to match the standard of the Premiership.
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