VIERA, Fla. -- Edwin Jackson is one year older than Ryan Zimmerman.
Jackson is on his seventh major-league team, eighth if you include the few minutes he was officially a Blue Jay between stops with the White Sox and Cardinals last summer. Zimmerman is still with his first.
Jackson has a one-year contract with the Nationals, so he could well be headed for a ninth team next year. Zimmerman just signed a contract that basically commits him to the Nationals for the rest of his career.
Zimmerman chose to stay with the same team. Jackson didn't exactly have a choice. He was traded for the first time when he was just 22 years old, then traded five more times before he became a free agent last fall.
So if you're one of those people bemoaning the player movement in the modern game, just remember that there are still quite a few players who want to play an entire career with one team.
And just remember that it's often not the player's choice when it doesn't happen.
"People don't realize that it's got to be a two-way street," Zimmerman said Monday.
Zimmerman said he has spent time talking to Ryan Braun and Troy Tulowitzki, two other players who are headed to long one-team careers. They're not alone; it's obvious by now that Derek Jeter and Mariano Rivera won't be playing for anyone but the Yankees, just as Jorge Posada retired last month as a one-team player.
Zimmerman is just 27, but he should end up doing the same. His new contract binds him to the Nationals through 2019, with an option for 2020, and with no-trade protection that he demanded as part of the deal.
He was determined to stay.
"I'm so comfortable here," Zimmerman said. "I think that helps you play better."
Jackson, who chose a one-year deal with the Nationals over three-year offers elsewhere, said he's just as comfortable moving around.
"I've been moving my whole life," said Jackson, whose father was in the military. "I was born on the move. It's almost like it was predestined."
As his manager would tell him, it's not always a bad thing. Davey Johnson chose to sign with the Orioles in the days before there was a draft, but the Orioles traded him to the Braves after eight years. He later played with the Phillies and Cubs, and he has managed five different teams.
"I know exactly where [Zimmerman] is coming from," Johnson said. "A big part of me would be envious. But I also like change, and I like challenges.
"I'm glad that he's glad."