The Giants have given permission to the agent of Osi Umenyiora to work out a trade for the two-time Pro Bowl defensive end, a league source told ESPN's Sal Paolantonio. The Giants want a first-round pick for Umenyiora, who continues to be unhappy with his contract status even after a meeting with team officials over the weekend, the source said. Umenyiora's agent, Tony Agnone, began contacting teams on Monday. He and a spokesman for the Giants declined comment on Monday. Umenyiora is expected to remain in training camp pending the trade.