The other surgery behind NBA’s fears over Knicks’ Tony Wroten: There’s a potent reason 6-foot-6 Knicks point guard Tony Wroten was deemed a big risk by other teams after the 76ers cut him in late December. According to a longtime mentor from Seattle, Wroten’s rehab from 2015 ACL right-knee surgery was not his first one. Will Conroy, the University of Washington assistant who was on the roster of four NBA teams, told The Post Wroten tore the ACL of the same knee his junior year at Seattle’s Garfield High School while playing wide receiver for the football team.