 He made his major league debut on April 10, pitching a scoreless eighth inning in the Mets second game of the season, a 3–2 11-inning loss to the Philadelphia Phillies at Shea Stadium.He blew saves in his next two appearances, losing one and winning the other.In his next appearance, against the Chicago Cubs, Baldwin replaced Randy Tate in the seventh inning with runners on second and third and nobody out.