The Braves "get the ball rolling" on keeping Tim Hudson in Atlanta: Braves general manager Frank Wren and Hudson's agent, Paul Cohen, began negotiations on Thursday and they are expected to continue talking over the course of the next couple of days. "We just kind of got the ball rolling," said a source with knowledge of the negotiations. [...] Specifics about the early extension talks weren't revealed. But it is believed the Braves would be comfortable pr...