Saracens secured both first place in the Aviva Premiership table and a home play-off semi-final with a combative 23-14 win over Newcastle Falcons at Allianz Park.
England internationals Joe Marler and Owen Farrell have both been cited over incidents that occurred while they were on European duty with their clubs over the last few days.
Saracens continued their quest towards a possible domestic and European double as they booked their place in next month's Champions Cup final by beating Wasps 24-17 at the Madejski Stadium.
Chris Ashton extended his post-suspension scoring streak with two tries as Saracens convincingly dispatched Harlequins 22-12 in their Aviva Premiership match at Wembley Stadium.
Mark McCall insists that domestic and European title double-chasers Saracens will not look beyond the next game as a season of possible greatness continues to develop.
Saracens' pursuit of silverware on two fronts will be bolstered by the return of England hooker Jamie George from the ruptured biceps injury that ended his RBS 6 Nations.
Chris Ashton rescued Saracens from disaster as an injury-ravaged Northampton's brave attempt at causing a major upset in the fierce rivals' Champions Cup quarter-final at Allianz Park faltered late on in a 29-20 defeat.
Northampton will limp into Allianz Park for their Champions Cup quarter-final against Saracens after seeing a number of key players including Dylan Hartley ruled out.
Dylan Hartley could make an earlier than expected return from concussion in time for Northampton's Champions Cup quarter-final against Saracens on Saturday.
Saracens have been sensational so far this season and the defending champions are looking incredibly strong as the business end of the campaign approaches.
England and Saracens lock George Kruis has been cited for an alleged bite in Friday's Aviva Premiership clash at Bath, the Rugby Football Union has announced.
England wing Chris Ashton will make his comeback after a 10-week ban when Aviva Premiership leaders Saracens tackle Bath at the Recreation Ground on Friday.