The NFL's free agency period began March 10, and 18 unrestricted free agents were labeled "difference-makers" or "impact starters" by the "Around the NFL" team.
Here's a look at the top 17 who remain unsigned, and who might be available in the first two rounds in this year's NFL draft as possible replacements.
1. DT Ndamukong Suh, Detroit Lions
2. S Devin McCourty, New England Patriots
3. TE Julius Thomas, Denver Broncos
4. RB DeMarco Murray, Dallas Cowboys
5. DE Jerry Hughes, Buffalo Bills
6. G Mike Iupati, San Francisco 49ers
7. DE Greg Hardy, Carolina Panthers
8. CB Byron Maxwell, Seattle Seahawks
9. WR Torrey Smith, Baltimore Ravens
10. OLB Jason Worilds, Pittsburgh Steelers
11. DE/OLB Pernell McPhee, Baltimore Ravens
12. WR Jeremy Maclin, Philadelphia Eagles
13. DT Nick Fairley, Detroit Lions
14. OT Bryan Bulaga, Green Bay Packers
15. DT Jared Odrick, Miami Dolphins
16. DT Terrance Knighton, Denver Broncos
17. C Rodney Hudson, Kansas City Chiefs
Mike Huguenin can be reached at mike.huguenin@nfl.com. You also can follow him on Twitter @MikeHuguenin.