Dragons: Surgery blow for Ollie Griffiths and Brok Harris
Dragons have suffered a double injury blow with Wales flanker Ollie Griffiths and prop Brok Harris both undergoing surgery.
Griffiths will be out for eight weeks with an ankle injury while Harris has had an operation on his shoulder that will sidelines him for four months.
"He's been very unlucky," Dragons coach Bernard Jackman said of Griffiths,
"He had a miraculous recovery from his broken jaw and has been playing really well."
The 22-year-old made his Wales debut after coming on as a replacement in the 2017 summer tour victory over Tonga.
Griffiths suffered a broken jaw in October which forced him to miss out of the autumn internationals.
The Dragons will also miss South African prop Harris who has been transferred to loosehead this season by Jackman.
Wales trio Hallam Amos, Elliot Dee and Cory Hill will return for the Challenge Cup match against Newcastle at Rodney Parade on Friday night but prop Leon Brown will be missing again.