On May 15, 2008, Wagner issued a tirade full of profanity against his teammates and coaches following the Mets' 1–0 loss in a game against the Washington Nationals. Some people have speculated that this was directed in particular toward his teammates Carlos Beltrán and Carlos Delgado about their not being available for interviews with the press following games. However, Wagner's pitching performance in April, May, and June was good enough to find him chosen by the All-Star Game's National League manager for his pitching staff.