"I wouldn't say sad day," Marlins president of baseball operations Michael Hill said. "It's a win-win for both sides. ... I know Giancarlo made it clear midway through the 2017 season he didn't want to be part of a rebuild."
Yankees get NL MVP Giancarlo Stanton from Marlins →
Hill said the key acquisition in the Gordon deal was Neidert, who went 11-6 with a 3.45 ERA as a 20-year-old in 2017 and finished the season at Double-A Arkansas.
Marlins' Dee Gordon traded to Mariners for 3 prospects →