http://sports.espn.go.com/nfl/news/story?id=2568851 The New England Patriots on Friday rejected trade proposals for holdout wide receiver Deion Branch, leaving the sides at a stalemate as teams prepare for their season openers next week. In fact, the parties' stances might have grown more contentious Friday, with sources confirming that Branch and agent Jason Chayut have filed a grievance against the Patriots through the NFL Players Association. In the grievance, filed after the 4 p.m. Friday deadline passed without a trade, Branch is seeking an expeditious hearing in front of a "special master" arbitrator. Richard Berthelsen, lawyer for the union, said the grievance alleges that the Patriots "reneged" on an agreement to trade their best receiver. Chayut is apparently prepared to argue that trade offers made by the New York Jets and Seattle Seahawks were appropriate and of a fair market value, given recent deals involving other NFL wide receivers. ESPN.com's Michael Smith reported that the Jets offered a second-round draft choice for Branch. The Patriots issued a two-sentence statement Friday that read, "No trade has been consummated. Deion Branch remains under contract to the New England Patriots." The team had no comment on the grievance. In a conference call, Patriots coach Bill Belichick refused several times to expand on the team's statement. "I'll let that speak for itself," he said. Belichick had similar responses when asked to comment on the grievance, if the team deadline was final and whether the team was still trying to trade Branch. Branch had earlier reached agreements with the Seahawks and Jets on what ESPN.com has learned was a six-year, $39 million contract. The contract included a combined $13 million in guaranteed signing and option bonuses. Under the contract, Branch would have earned nearly $23 million in the first three years of the deal.