I was jogging downcourt at the YMCA after sinking a three-pointer against the 40-something newbie when he turned to his teammate and asked, “How old is this guy?’’    I chuckled. Certainly, it was good for the ego of an almost 67-year-old basketball player, but it balanced the doubts I had carried for the … Continue reading When do aging athletes know it’s time to hang up sneakers?