Before he became “The Man,” he was simply a sailor. A 24-year-old sailor with a National League Most Valuable Player award and two World Series wins. A sailor who, months before joining the Navy, led the NL with 197 hits, 51 doubles and a .541 slugging percentage — a stat that didn’t even exist yet — before leading his St. Louis Cardinals over the crosstown rival Browns in the Fall Classic. But still, a sailor. Stan Musial, who died Saturday at age 92, entered service at the tail end of World War II, joining a list of veteran baseball players…