The players were arrested last week on charges of robbery-bodily injury after another TCU student told Fort Worth police investigators that the players stole a case of beer while attacking him and his friends.
The incident happened Sept. 4, a day after the fourth-ranked Horned Frogs beat Minnesota in their season opener. Tuaua and Petties-Wilson played against the Golden Gophers but missed the past three games.
Coach Gary Patterson said the players had ''gone through the judicial process,'' although a Fort Worth police spokesman said the case hasn't been forwarded to Tarrant County prosecutors.
Tuaua played all 12 games with five starts last season.