Monday opens the window in which NFL teams can apply the franchise tag to players.It appears unlikely the San Francisco 49ers will give out any significant tag to a pending free agent. Yes, the 49ers have priority free agents, but there are no natural fits for any of them to be franchised.The priority free agents are receiver Anquan Boldin, safety Donte Whitner, kicker Phil Dawson and cornerback Tarell Brown.The team definitely wants Boldin, who had one of his best NFL seasons in his only year in San Francisco, to return.