Wales coach Warren Gatland says he faces a major decision on whether to take Dragons captain Cory Hill to the World Cup after the lock suffered a small fracture in his leg.
The 27-year-old will miss the World Cup opener against Georgia on 23 September and is a major doubt against Australia six days later.
Wales select their 31-man squad on Saturday evening and name it on Sunday.
“Our big discussion is with Cory Hill,” said Gatland.
“He has got a really small fracture in his leg which we got scanned yesterday.
“It could keep him out until game two or three [of the World Cup] so there will be a big discussion point whether we take him or not.”
Hill, who can also play in the back-row, has not played since scoring a try against England in February 2019 during the Six Nations victory.
Captain Alun Wyn Jones, Adam Beard, Jake Ball and Bradley Davies are the other specialist second-rows in the extended 40-man squad, with flanker Aaron Shingler also capable of playing at lock.
Gatland played down fears over Dragons back-rower Ross Moriarty, who was a late withdrawal from the bench for Saturday’s 17-22 loss against Ireland because of a hip problem aggravated in training.