Hart had served as Atlanta's president of baseball operations until moving to a "senior adviser" role earlier this week.
Jose Altuve and Giancarlo Stanton were honoured with MVP awards in MLB.
Altuve led MLB in average this season, while Stanton crushed an MLB-best 59 home runs.
Ryon Healy is heading to the Seattle Mariners from the Oakland Athletics.
Healy hit 25 home runs last season.
Corey Kluber and Max Scherzer were named the respective Cy Young award winners in MLB.
Kluber and Scherzer were named MLB Cy Young award winners this season.
Giancarlo Stanton's future in Miami is in doubt but Derek Jeter said he has not spoken with the Marlins outfielder.
Stanton hit a career-high 59 home runs last year.
Beckett was watching a country band in Texas when he jumped on stage and tackled the singer, causing injuries.
The veteran outfielder is going out a champion after a dynamic career than spans two decades and seven teams.
The Boston Red Sox's Mookie Betts showed off his talent in a different sport, bowling a perfect game.
Betts rolled his first 300 Sunday night at the World Series of Bowling .
The Twins are after a closer this offseason.
Aaron Judge and Cody Bellinger dominated Monday's awards, taking out respective Rookie of the Year honours.
Giancarlo Stanton enjoyed the best season of his career with 59 home runs, but he has become subject to trade rumors with new ownership.
Forbes' "30 Under 30 Sports" list includes young individuals with a combination of athletic ability and entrepreneurial acumen.