] Pedro goes on DL BY DAVID LENNON Newsday Staff Writer August 16, 2006, 4:04 PM EDT PHILADELPHIA -- The Mets announced today that Pedro Martinez has been placed on the 15-day disabled list because of a minor right calf strain suffered in Monday's 13-0 loss to the Phillies at Citizens Bank Park. The team has recalled reliever Heath Bell from Triple-A Norfolk to take Martinez's roster spot. The Mets have not selected a replacement for Martinez's next start, but one possibility is lefthander Oliver Perez, who pitched well for Norfolk on Monday. Martinez, 34, has been bothered by the strain for at least the past three starts including Monday, when he allowed six runs in one inning in the second-shortest outing of his career. Martinez will wear a protective boot for the first week, when he'll be limited playing catch a riding a stationary bike