Wales international wing George North will feature for Northampton Saints for the first time since suffering a head injury against Leicester Tigers.
Saints allowed North to return to the field after he was seemingly knocked out in a Premiership meeting with Leicester on December 3.
The Concussion Management Review Group subsequently ruled North should not have been allowed to play on, although Northampton were not punished for their decision.
Last week, World Rugby asked the Rugby Football Union for more information regarding Saints' "apparent non-compliance" with concussion protocols.
The 24-year-old suffered a number of head injuries in 2014 and 2015, but has been cleared to return to the Saints XV for their trip to Gloucester on Sunday.
Your first Saints of 2017 are... pic.twitter.com/p4c3CTdow0-- Northampton Saints (@SaintsRugby) December 30, 2016