Friday — Deadline for old club to exercise right of first refusal to restricted free agents.

Saturday-Sunday — NFL draft, New York.

May 18-20 — Spring meeting, Fort Lauderdale, Fla.

June 1 — Deadline for old clubs to send tender to unsigned unrestricted free agents to receive exclusive negotiating rights for rest of season if player is not signed by another club by July 22. Deadline for old clubs to send tender to unsigned restricted free agents or to extend qualifying offer to retain exclusive negotiating rights.

June 15 — Deadline for old clubs to withdraw original qualifying offer to unsigned restricted free agents and still retain exclusive negotiating rights by substituting tender of 110 percent of previous years salary.

July 22 — — Signing period ends at 4 p.m. EDT for unrestricted free agents who received June 1 tender.

Aug. 9 — Pro Football Hall of Fame Game, Canton, Ohio.

Aug. 13-17 — First preseason weekend.

Sept. 1 — Roster cutdown to maximum of 75 players.

Sept. 5 — Roster cutdown to maximum of 53 players.

Sept. 10 — Season opener.