Tennessee forward Olivier Nkamhoua, a two-year starter, entered the portal as a graduate transfer on Thursday.Nkamhoua spent the past four seasons at Tennessee and played in 112 games, starting 58. He has career averages of 6.5 points and 3.8 rebounds per contest.The 6-foot-9 Nkamhoua averaged career highs of 10.8 points and 2.0 assists plus 5.0 rebounds in 36 starts for the Volunteers this past season as Tennessee made it to the Sweet 16.