No. 6 Tennessee and No. 15 Oklahoma both updated their availability reports Thursday night, after issuing the initial injury reports Wednesday night. The Vols (3-0) face the Sooners (3-0) Saturday at Oklahoma Memorial Stadium in Norman, in a 7:30 Eastern Time start on ABC. The availability reports, as mandated by the SEC, will be updated again Friday night and one final time 90 minutes before kickoff on Saturday. The most notable name on Tennessee’s availability report is Lance Heard, the five-star LSU transfer and starting left tackle who missed last week’s 71-0 win over Kent State. Sophomore…