Northampton Saints flanker James Haskell has handed the English side a major boost ahead of their European Rugby Challenge Cup quarter-final next month, as he starts his first match since October this weekend. The 33-year-old England international – who was part of Wasps’ 2007 European Cup winning team – has not played since his side’s Challenge Cup Pool 1 defeat to ASM Clermont Auvergne in Round 1, but he will line up in Saints’ Gallagher Premiership game against Bath Rugby on Saturday. Northampton managed to reach the quarter-finals without Haskell and will take on Clermont in the last eight on March 31 at Stade Marcel-Michelin, live on FR4, BT Sport and beIN SPORTS. https://twitter.com/SaintsRugby/status/1098914047012024324 Elsewhere, Harlequins and Bristol Bears face off in the Gallagher Premiership on Saturday as they tune up for their respective matches in the last eight of the Challenge Cup. Three-time Challenge Cup winners Harlequins have made four changes as they go in search of a fourth consecutive domestic win, with scrum-half Charlie Mulchrone replacing England international Danny Care in the No.9 position. Experienced flanker Chris Robshaw and full-back Mike Brown – who played in Quins’ 2011 Challenge Cup final victory over Stade Français Paris – both feature as the London club ramp up their preparations for a quarter-final against Pool 2 winners Worcester Warriors on March 30, live on BT Sport and beIN SPORTS. https://twitter.com/ERChallengeCup/status/1098493345293352961 Bristol Bears – who came second in Pool 4 – make six changes for Saturday’s match, with head coach Pat Lam handing a return to former All Blacks full-back Charles Piutau, who is yet to feature in Europe this season. Bristol take on Pool 4 winners La Rochelle in the quarter-finals at Stade Marcel Deflandre on March 31, live on BT Sport and beIN SPORTS.