Their bullpen could use a boost, a fresh arm that might allow them to cut down on all those earned runs. But Frank Francisco, the reliever who saved 23 games last season, is not going to be that fresh arm anytime soon. Francisco threw 25 pitches Saturday in Port St. Lucie, Fla. "He felt OK," manager Terry Collins said. "Not great. We’ll just continue to see how it progresses." Francisco had surgery to remove bone chips in his elbow last December, but he still was expected to be back in time for the start of the regular season. "We’ve had him looked at by the doctors," Collins said. "There [are] no other structural issues at hand. So he’s the only one who can tell us how he feels. Nobody else knows." Collins said there’s "absolutely no timetable" for Francisco’s return, which is bad news for the Mets. Heading into Sunday, the bullpen had the second-worst ERA in the majors (5.28).