Gloucester beat the Premiership leaders for the second week in succession as Saracens slip to defeat at Kingsholm.
Wasps sign Tonga international back-row forward Sione Vailanu from Saracens for next season.
Saracens come from behind against Leicester and grab a late bonus-point win to regain top spot in the Premiership.
Bath-bound Cornish Pirates prop Christian Judge re-joins Saracens on a short-term deal until the end of the season.
Audio & Video
Wales and Lions back Liam Williams discusses his stammer with ex-Wales captain Gareth Thomas for Scrum V.
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