From leading scorer to leading actor.
Of the four teams he played for, he was an All-Star on three of them (Milwaukee, Seattle and Boston) and averaged 15 points per game or less in his career only four times.
His epic Game 6-tying 3-point shot with 5.2 seconds left spared the Miami Heat from elimination in the 2013 NBA Finals in one of the greatest playoff baskets ever. Miami would go on to win the series in Game 7, giving Allen the second of his two career championships.
He removed Reggie Miller from the top spot on the all-time list for 3-pointers made in 2011 and he led the league in 3-pointers made three times (2001-02, '02-03 and '05-06).
Allen was traded three times in his career, with the final trade making him a key part of a championship team. The Celtics acquired him in a trade with the Seattle Supersonics in 2007 as Boston assembled a "Big Three" lineup consisting of Allen, Kevin Garnett and Paul Pierce. That trio led Boston to a 66-16 mark in 2007-08 and an NBA title as well.
His career-best scoring game came in the 2007-08 season with Seattle when he lit up the Utah Jazz for 54 points. He was 8-for-12 on 3-pointers and went 12-for-12 at free throw line as the Sonics won in overtime.
In the summer of 2012, Allen signed with the Miami Heat, teaming up with LeBron James, Dwyane Wade and Chris Bosh. That group plus Allen took the NBA by storm from 2012-14 as Miami went 120-44, made the Finals both times and won the NBA title in 2013.