Most of the big-name free agents already have been signed, but here are five guys still on the market who could make an impact:
1. LB Cato June, Colts: Great instincts. He is a smart football player who has the talent to adapt to playing in either a 3-4 or 4-3 defense.
2. CB Nick Harper, Colts: He's a very good cornerback in a league that is devoid of top-flight corners right now.
3. DT Ian Scott, Bears: He's very young (25) and has shown a great deal of energy at times. He could be a disruptive force for years to come.
4. SS Ken Hamlin, Seahawks: He has the ability to anchor a defensive backfield due to his aggressiveness and his intelligence.
5. DT Robaire Smith, Titans: He's not the best defensive tackle available, but he has a lot of experience and could be a good locker room presence.