Ketel Marte thought he knew it all. He was young, just 21 when he reached the big leagues, and after tasting success as a rookie, he no longer thought he needed to listen. Marte, thinking back on his days with the Seattle Mariners, is not proud of this.
“I was a little crazy out there,” he said.
On Friday, for the first time since being traded to the Diamondbacks almost two years ago, he will face his old team, and he needed only a moment to consider the question: How is he most different now compared to what he was then?