Premiership champions Exeter will begin their title defence at Gloucester when the 2017-18 season starts on 1 September.
Wasps sign Gloucester's Paul Doran-Jones and fellow prop David Langley from Cambridge, while Tom Bristow exits the club.
Uncapped trio Steff Evans, Seb Davies and Thomas Young are named in the Wales team to face Tonga in Auckland on Friday.
Wasps' Tommy Taylor and Worcester Warriors' Nick Schonert are ruled out of England's tour of Argentina through injury.
Audio & Video
The moment the England and Wasps fly-half Danny Cipriani had to put an interview on hold after he was approached for a photo by a fan.
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What's on BBC Sport this week
This week's sport on the BBC includes the Challenge Cup final from Wembley, England v West Indies in the second Test at Headingley and the Belgian Grand Prix.