With the European Rugby Challenge Cup quarter-finals just a week away, three English clubs welcome back their Six Nations Championship stars for Gallagher Premiership matches on Saturday. Worcester Warriors recall Wales Grand Slam winner Josh Adams and England centre Ben Te’o, quarter-final opponents Harlequins bring back England prop Kyle Sinckler and Sale Sharks reintroduce England flanker Tom Curry and Scotland wing Byron McGuigan. Wing Adams, who scored three tries for Wales in their Grand Slam success, touched down for the Warriors when he last played for the club five weeks ago at The Stoop and will be looking to continue his run with a home quarter-final against Quins looming on March 30. Worcester, who visit fellow Challenge Cup quarter-finalists Bristol Bears on Saturday, pick Te’o in the No.13 jersey for his first club game since the Challenge Cup win over Stade Français Paris on January 19. Meanwhile, Sinckler is one of five changes to the Harlequins side who face Heineken Champions Cup quarter-finalists Saracens at the London Stadium. [jwplayer nUu7IvTQ] Sinckler is joined by fellow England international prop Joe Marler in the front row, while England scrum-half Danny Care returns after a rib injury and Marcus Smith, joint third in this season’s Challenge Cup points-scorers' list, is back in the Quins No.10 jersey. Sale, who kick off the Challenge Cup quarter-finals at home to Connacht Rugby on March 29, bring Tom Curry back at blind-side flanker for their Premiership match against Newcastle Falcons at St. James’ Park, venue for the European Finals Weekend in May. Loose-head prop Ross Harrison also returns for the game at Newcastle United Football Club’s ground, after a three-game absence through injury. Bristol have mixed injury news prior to their Challenge Cup quarter-final at La Rochelle on March 31. Lock Ed Holmes returns from an ankle injury, but full-back Charles Piutau has been ruled out for four weeks with a calf injury.