Tom Youngs will miss England's autumn internationals after being ruled out of action by Leicester for three months.
Australian scrum-half Pat Phibbs has signed a short-term deal with Exeter to provide injury cover.
A review of the weekend's Aviva Premiership action as Northampton were runaway winners at Newcastle.
Ospreys beat Edinburgh 62-13 on Sunday to move to the top of the PRO12 table.
Post-match reaction to Northampton's 35-10 victory over Newcastle.
Chris Robshaw says he is experienced enough to handle renewed speculation over his position as England's captain.
Post-match reaction after Harlequins' 26-23 victory over Wasps.
Post-match reaction to Bath's 45-0 victory over Leicester.
Post-match reaction to Saracens' 36-32 victory over London Irish.
Post-match reaction to Sale's 46-8 victory over London Welsh.