LaVar Ball said his oldest son, Los Angeles Lakers rookie point guard Lonzo Ball, is “disgusted” with how the team has been playing. And the outspoken father blamed the Lakers’ recent struggles on how the coaching staff has been utilizing his son. The Knicks announced he would be reevaluated after two weeks, didn’t give a concrete timetable and ominously announced he would start “a treatment and rehabilitation plan.” That language doesn’t sound like a two-week injury. A stress injury, according to medical experts, means Hardaway either has a stress reaction or, more severely, a stress fracture to either his fibula or tibia. A leading expert on basketball leg injuries, Dr. William Hsu of Northwestern, told The Post a stress reaction to those inflamed bones can put a player out two to six weeks. A stress fracture is more of a two-month process but surgery is not required.