Jaouen (hamstring) will have to undergo surgery and will be sidelined for multiple weeks, according to Lee Ryder of The Chronicle Live.
Analysis:Jaouen suffered the injury while on international duty with France U21 during the international break, and scans revealed the injury was worse than initially expected. With the young shot-stopper set for several weeks on the sidelines and Filip Hornacek firmly entrenched as the starter between the posts, Nick Pope should serve as Newcastle's No. 2 goalkeeper for the time being.