Daniel Kamen, 53, of Buffalo Grove, Ill., said he plans to start his diet after the All-Star break in mid-July and continue until the Cubs either win five consecutive games or end their season for the year, the Chicago Sun-Times reported Wednesday.
"I'm going to motivate them," he said. "I'm going to embarrass them into winning more games. They will see me get skinnier and skinnier, until maybe there's nothing left of me."
Kamen invited portly Cubs manager Lou Piniella to join his diet.
"It's an official invitation," Kamen said. "I'll show him how to do it."