Tyndall confirmed via text message what was first reported by Knoxville radio station WNML.
Ndiaye, who is listed as 6-foot-10 and 275 pounds, would have been a senior this season.
Ndiaye played one year at Tennessee after arriving from Indian Hills Community College in Ottumwa, Iowa. He played 22 games this past season and averaged 0.9 points, 1.0 rebounds and 3.3 minutes.
Ndiaye, who grew up in the Bronx, N.Y., attended high school at Woodrow Wilson in Dallas and prep school at Body of Christ Academy in Raleigh, N.C., before going to Indian Hills.