Wales prop WillGriff John is a major doubt for at least their Six Nations opener against France in Paris on Friday.

The 32-year-old failed a Head Injury Assessment after leaving the field in the first half of Sale Sharks' 32-23 home English Premiership defeat by Bath on Sunday.

John is one of three tight-head props in Warren Gatland's squad alongside Cardiff's Keiron Assiratti and Henry Thomas of Scarlets.

But the number three jersey is problematic for Wales with with Bath's Archie Griffin unavailable following shoulder surgery and Leon Brown having recently retired.

John has not played for Wales since 2021 and, against Bath, was making just his second start for Sale this season with four further replacement appearances.

Assiratti was second choice to Griffin during Wales' autumn internationals and Thomas was an unused squad member as Wales completed 2024 without a win.