Wales lock Jake Ball is set for a lay-off that threatens his involvement in the RBS 6 Nations after suffering a knee injury.
The 24-year-old Scarlets player was hurt during the Boxing Day match against Ospreys in the Guinness PRO12.
Ball could be out of action for 10 weeks, according to reports, and he wrote on Twitter: " Absolutely Gutted with injury thanks to everyone who sent messages. Be back bigger and stronger in the new year."
Scarlets head coach Wayne Pivac said on the BBC Sport website: "He's got a bit of a tear and he'll see a consultant to get an accurate view. With any luck, it's just a rehab job."
Wales begin their Six Nations campaign against Ireland on February 7 before tackling Scotland and France later in the month and facing England and Italy in March.