Dylan Mika, a member of New Zealand's 1999 World Cup squad, has died at the aged of 45.
George North has been disciplined by Northampton Saints for missing training this month.
Newcastle Falcons became the first visiting side to win at Kingsholm in the Premiership this season, as it capitalised on Gloucester's kicking issues to triumph 21-20.
Matt Toomua scored 23 points in Leicester Tigers' win over Harlequins, while Gloucester was beaten at lowly Worcester Warriors.
Danny Cipriani announced he will leave Wasps when his contract expires at the end of the season.
Wasps played over three quarters of their Premiership clash against Harlequins with 14 men but moved back into the top three with a 44-22 victory at Twickenham Stoop.
Sergio Aguero struck twice, while Vincent Kompany, Fernandinho and Gabriel Jesus were also on target as Manchester City thumped Watford 5-0.