Scarlets will be without Wales international tight-head prop Samson Lee for their Pro 12 trip to Glasgow.
Lee, 22, was forced off in the win over the Ospreys with a neck injury and a suspected disc problem.
He is one of six regular front-row forwards who will miss the trip to Scotstoun on Friday evening.
Lee joins props Rhodri Jones and Phil John, along with hookers Ken Owens, Emyr Phillips and Kirby Myhill on the injury list.
Swansea-born Lee played in each of Wales' 2014 autumn internationals, including the historic 12-6 win against South Africa.
Scarlets have said he faces further tests on his neck and hope he will be available for the Leicester game in the Champions Cup on 16 January, providing no serious injury is found.
Jones dislocated his shoulder in the 22-10 win over Ospreys, an injury which forced Lee to return to the field having already been substituted.
Myhill's younger brother, fellow Scarlets hooker Torin, has been drafted in for bench duty and Carmarthen Quins teenager Ryan Elias will earn his first league start.