Seven-time Pro Bowl defensive end Michael Strahan failed to report to the New York Giants training camp, and he is mulling retirement, his agent told the team. "He is not here," Giants general manager Jerry Reese said after Strahan failed to report with veterans and rookies to the University at Albany. "Last night I talked to his agent (Tony Agnone) and his agent said to me at seven o'clock last night that he is contemplating retirement. That's all I know right now." Neither Reese nor coach Tom Coughlin has successfully contacted Strahan, although the 35-year-old who holds the NFL single-season record for sacks (22? in 2001) left a message for Coughlin around 11:30 p.m. on July 26. Coughlin did not see the message until this morning. He left a telephone message for Strahan, but it was not immediately returned. "Obviously I am disappointed that he is not here," said Coughlin, who said that Strahan left no message other than to call him. "He is a very important part of our team, as we have talked all along. We are just going to have to wait for more information.