The NFL has told its teams to adhere to rules against tampering in the three-day window for negotiating with free agents that opened Saturday.
Teams were allowed to contact representatives of free agents from other teams within the window, but the players can't visit any facilities or even talk to those clubs. The league has warned the teams against entering into any agreements with those players before free agency officially kicks off at 4 p.m. Tuesday.
Traditionally, contracts with free agents have been announced almost as soon as the NFL's business year begins, clearly indicating agreements had been reached before the free agency period began. The league hopes the negotiating window will limit any hints of tampering.