Derrick Thomas leaves Penn State after playing in 13 games in two seasons.
Penn State's already thin secondary got even thinner Friday.
Head coach Bill O'Brien announced through a team spokesman via Twitter Friday afternoon that junior cornerback Derrick Thomas has "left the team for personal reasons."
Thomas, of Greenbelt, Md., is the second upperclassman to leave the team this month (senior wideout Devon Smith was the other) and the second defensive back jettisoned since the spring. A frequent visitor to Joe Paterno's doghouse, Thomas made just four tackles in nine games in 2011 and three tackles and one interception in four games in 2010. He redshirted as a true freshman in 2009.
Following the departures of Thomas and Curtis Drake, the lone remaining scholarship cornerbacks on the team are senior Stephon Morris, redshirt junior Mike Wallace, sophomore Adrian Amos and incoming freshmen DaQuan Davis and Jake Kiley. Penn State also rosters walk-ons Jesse Della Valle, Devin Pryor and Patrick Flanagan, all redshirt sophomores.