Hundreds of enthusiastic fans gather to see boxers James Kirkland and Canelo Alvarez at Minute Maid Park, Uniion Station Lobby, 500 Crawford Street today.br/ID: Canelo Alvarez didn't demonstrate his sparing technique tonight, but he did pose and sign autographs with delighted fans.br/Wednesday May 6, 2015 (Craig H. Hartley/For the Chronicle)