Congratulations to the World Champion San Francisco Giants and their fans! The offseason officially begins today – 142 players immediately filed for free agency. This year the exclusive negotiating period has been shortened to five days, so free agents can talk dollars only with their old teams until Sunday. As always, MLB Trade Rumors will be your one-stop shop for all the signings, trades, and rumors. Click here to see our list of free agents, including Cliff Lee, Carl Crawford, Derek Jeter, Mariano Rivera, Adam Dunn, Adrian Beltre, Jayson Werth, Victor Martinez, Manny Ramirez, David Ortiz, and many more.