CLEARWATER, Fla. — A year ago, the Phillies gave Odúbel Herrera a chance to be the opening day center fielder. History is about to repeat itself. Against almost all odds when the offseason began, the Phillies are in agreement on a major-league contract with Herrera, a source confirmed Monday. The team didn’t comment because the deal is pending a physical. Given the Phillies’ other positional needs and the lack of free-agent center-field options, it’s likely Herrera, a left-handed hitter, would platoon at the position with righty-swinging Matt Vierling. Zack Wheeler hurt? Odúbel Herrera returns…