Alex Sanchez is trying to return to the major leagues with the Marlins after being the first player penalized two years ago under baseball's toughened steroids policy. "I'm here to prove to everybody that I can still play. I've got some good things to give to this team," Sanchez said Thursday. He hit .297 last year for Cincinnati's Chattanooga affiliate. A veteran of 1,527 major league at-bats with a .296 career average, the center fielder was released by mid-June.