Foster finished his Tennessee career second on the school's all-time rushing list with 2,964 yards. He is the Vols' all-time leader in rushes with 650 and all-purpose touches with 740 while his 3,863 all-purpose yards rank third in program history. He carried 131 times for 570 yards in his final season in Knoxville.
Ayers played a vital role in making Tennessee's 2008 defense one of the nation's best, posting 49 tackles and 15.5 tackles for loss. He notched 113 career stops from his defensive end position including nine sacks and 31.5 tackles for loss.
Offensive lineman Anthony Parker was also invited to participate in the week's activities but sustained an ankle injury during practice Wednesday and will not play Saturday.
Two other former Vols are still a week away from their postseason all-star game. Defensive tackle Demonte Bolden and cornerback DeAngelo Willingham will play for the National Team in the Texas vs. the Nation All-Star Challenge on Jan. 31st.
The game is played at the Alamo Bowl in El Paso, Texas, and will kickoff at 2 p.m. ET on CBS College Sports Television.