The NFL has disapproved the recently-signed contracts for first-round draft picks Sam Bradford, Gerald McCoy and Kyle Wilson, according to a league source with knowledge of the situation. This doesn't invalidate the entire negotiation, but is typically an indicator that some contract language needs to be tweaked before it's processed by the league office. While those adjustments are made between the teams and the players' representatives, the player is still allowed to continue practicing. According to several agents, negotiating first-round and second-round deals became more complex this year because of the potential lockout in 2011 with the labor strife surrounding the league. This also happened with New Orleans Saints first-round cornerback Patrick Robinson's deal. Source: National Football Post
