Giants defensive end Osi Umenyiora says he isn't happy that the team offered him only "half" the guaranteed money it recently gave to fellow defensive end Mathias Kiwanuka. "They offered an extension -- guaranteeing half of what they just gave 'Kiwi' guaranteed," Umenyiora wrote to The Star-Ledger on Sunday. "And I'm a greedy pig for turning down half of what they just gave 'Kiwi.' Lol." Kiwanuka received a three-year extension from the Giants last week that included $10.95 million in guaranteed money.