Rockies Host Diamondbacks for Opening Day in Denver..

A fan tries to catch a Colorado Rockies Todd Helton foul ball down the left field line with Arizona Diamondsback left fielder Gerardo Parra sliding to attempt a catch at Coors Field on Opening Day in Denver on April 1, 2011. Helton was ruled out by third base umpire Bill Welke with an apparent fan interference call. UPI/Gary C. Caskey