Mookie Betts thanked Boston for nine years as a Red Sox in a video highlight he tweeted Monday morning.
"You were great to me Boston," Betts says in the video. "The way you welcomed me in like family."
The video montage also includes footage of the Los Angeles Dodgers, where he will begin the 2020 season.
"Though the jersey will change, the mindset will not," Betts says in the video.
In a press conference Monday, Red Sox owner John Henry said trading Betts was “one of the toughest, most difficult decisions we have ever had to make."
"We too love the young man, the great great smile, the huge heart and the seemingly boundless talent he displayed here,” said Henry.