Nathan Hughes to face panel after North sending off
Nathan Hughes will appear before a Rugby Football Union disciplinary panel following the incident which saw the Wasps forward sent off and Northampton's George North taken off on a stretcher last Friday.
North left the field unconscious after scoring the second of two tries in Saints' 52-30 win, as Hughes was sent off for dangerous play as the Wales wing touched down.
Hughes protested his innocence and now faces a disciplinary panel in London on Tuesday.
A RFU statement read: "Nathan Hughes (Wasps Rugby) will appear before an RFU Disciplinary panel on Tuesday evening (6.30pm) at the London Bloomsbury Holiday Inn, charged with striking with the knee and/or shin, contrary to Law 10.4(a), during Northampton Saints v Wasps RFC on Friday, March 27 in the Aviva Premiership."
North's injury was a worrying sight after he took two blows to the head in Wales' RBS 6 Nations defeat against England last month.
Visser to move to Quins
Scotland and Edinburgh winger Tim Visser has signed for Harlequins and will join his new club next season.
Visser, who is out of contract at the end of the current campaign, has spent almost six years at Edinburgh since signing from Newcastle Falcons in the summer of 2009.
The 27-year-old has scored seven tries in 18 appearances for Scotland and topped the Pro 12's try-scoring charts for the past four seasons.
"I am delighted to join a club with as much heritage as Harlequins," Visser said.
"It's a dream come true and I'm looking forward to meeting my new team-mates and helping the club move forward."
Harlequins director of rugby Conor O'Shea added: "We are delighted to welcome Tim to the club."