Tom Brady faces a decision, whether to leave the New England Patriots after 20 years. Not many athletes have spent their first 20 years with the same franchise and then moved on to new teams.
Hank Aaron

Hank started and ended his career in Milwaukee. Aaron played 21 seasons for the Milwaukee and Atlanta Braves. The Braves traded Aaron to the Milwaukee Brewers after the 1974 season. Aaron appeared in 222 games for the Brewers in 1975 and hit 22 home runs.
Ray Bourque

At the 2000 trade deadline, the Boston Bruins dealt defenseman Ray Bourque to the Colorado Avalanche. He was in his 21st year with the Bruins. Bourque returned to Colorado for the 2000-01 season. which culminated in the defenseman hoisting the Stanley Cup for the first time. Bourque retired after the season.
Martin Brodeur

Martin Brodeur played 21 seasons with the New Jersey Devils and won three Stanley Cups. He finished his career playing seven games with the St. Louis Blues.
Gordie Howe

Gordie Howe won four Stanley Cups and was named the NHL’s MVP six times in his 25 seasons with the Detroit Red Wings. After retiring, Howe played in the WHA. He returned to the NHL for the 1979-80 season, scoring 15 goals for the Hartford Whalers.
Harmon Killebrew

Harmon Killebrew spent the first 21 seasons of his career with the same franchise (Washington Senators/Minnesota Twins. He hit 559 home runs with it. Killebrew signed with the Kansas City Royals in 1975 and hit 14 home runs in his only season with the Royals, including one against the Twins in his final trip to Minnesota.
Willie Mays

Willie Mays spent the first 21 seasons of his career with the New York and San Francisco Giants. With Mays batting .184 in 19 games, the Giants traded him to the New York Mets in May 1972. In his Mets debut, Mays hit a go-ahead home run in a 5-4 win over his former team. Mays finished with 14 home runs as a Met and retired with 660.
Tom Brady

What will the G.O.A.T. do? Will he walk away from the New Engand Patriots?