The Mets have come to an agreement with former Marlins bullpenner Braden Looper, pending a physical and his willingness to surrender his traditional uniform number. Looper wore No. 41 for the Marlins, which ain’t for sale in Flushing, but that’s not all he’ll need to change: Until now, he’s always been a Met-killer. Update Jan. 6: Looper met the press today wearing the dreaded No. 46.