Premiership champions Exeter will begin their title defence at Gloucester when the 2017-18 season starts on 1 September.
Flanker Lachlan McCaffrey leaves Leicester Tigers after two years with the Premiership club.
Premiership side Leicester Tigers complete the signings of versatile backs Nick Malouf and Gareth Owen.
South Africa winger JP Pietersen is leaving Leicester Tigers after one season at Welford Road to join Toulon.
Audio & Video
Rucking and mauling take a backseat as the big cats of Leicester Tigers mix up pre-season training with some less than impressive diving and splashing at AquaPark Rutland.
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This week's sport on the BBC includes the World Aquatic Championships, England v South Africa in the third Test and the Challenge Cup semi-finals.