Titans' cornerback Michael Waddell will be sidelined four to six months after suffering a knee injury while playing with his 2-year-old son. To make a free-agent signing, the Titans likely would have to release McNair, who counts $23 million against their salary cap. Tennessee is reportedly $112,000 under the cap. Titans officials are tentatively scheduled to meet next week with free-agent cornerback Ty Law. They also have spoken with free agent Ahmed Plummer. According to a league source, Tennessee is preparing to hold on to McNair until they would need to sign their draft picks in July, a delay that could force the Ravens to increase their trade offer from a fifth-round pick.