Northampton survived a late scare to snatch a narrow 35-34 victory over Newcastle at Kingston Park.
England lock Ollie Chessum will return to Leicester Tigers' starting XV on Sunday as his side host Saracens in the Gallagher Premiership.
England captain Maro Itoje will return to captain a Saracens side containing four of his international team-mates during the Guinness Six Nations when they host Harlequins in the Gallagher Premiership on Saturday.
England flanker Ben Curry will captain his Sale Sharks side against Newcastle Falcons on Friday in the Gallagher Premiership, six days after his player of the match performance against Wales in the Guinness Six Nations.
Max Pepper, the former Great Britain sevens player, has delivered a major blow to Newcastle Falcons' bid to hang onto their young talent by turning down a new two-year deal to “jump ship” and join Bristol Bears.
England find themselves in a strange position heading into the final two rounds of the Guinness Six Nations.