Giants defensive end Osi Umenyiora says he is motivated by constant disrespect. Umenyiora may make his season debut on Sunday against the Cardinals. "I always have a chip on my shoulder," Umenyiora said. "I feel I'm constantly disrespected. I always feel the need to prove myself, and this season's no different than last season or the season before. And it's probably gonna be the same way next season. Something's going to happen and I'm gonna be disrespected again, and I'm going to have to prove myself all over again. That's just the way it is." Umenyiora, who has missed the first three games of the season with swelling in his surgically repaired right knee, was asked by whom he felt disrespected. "Just in general," he replied.