Miguel Cotto stopped champion Yuri Foreman in the ninth round of a bizarre WBA super-welterweight title bout Saturday as boxing returned to Yankee Stadium for the first time in 34 years. Cotto had been getting the better of Foreman with his heavier punching but his task was made easier when the Israeli hurt his right knee after slipping twice in the seventh round as the fight continued despite efforts by his corner to stop it. Foreman was in obvious discomfort and had limited movement and his knee buckled again in the eighth round following another slip, prompting his corner to throw in a white towel to signal an end to the fight. However, referee Arthur Mercante Jr. cleared the ring and asked the boxers to continue since he did not know who threw the towel and felt the bout was still competitive. Mercante did eventually halt proceedings after 42 seconds of the ninth round when the Puerto Rican landed a punishing left hook to the body that sent Foreman crumpling against the ropes and onto the canvas. “I felt bad for him (Foreman) but you have to keep on fighting,” the 29-year-old Cotto told reporters. “It was a lot of pain, very sharp pain,” said Foreman, who wore a brace on the knee from the start to protect an old injury. Already struggling, the champion limped around the ring after the slips and tried to land a big blow as his only hope after Cotto's left-hand barrage had blooded his nose, cut him above his left eye and discolored his right eye. Having seen his fighter suffer enough, Foreman's trainer Joe Grier tossed the towel into the ring but the raucous crowd of 20,272 witnessed another twist to an already compelling bout when the referee opted to ignore the request to stop the contest. Cotto improved his record to 35