Earlier this week, both the Atlanta Braves and Philadelphia Phillies indicated signing a center fielder was their top priority. The Washington Nationals have also expressed interest in the 28-year-old, however, we've seen enough players sign with dark horses the past few years to know you can never rule out the mystery team.
Upton made $7 million in 2012, and declined Tampa Bay's one-year $13.3 million offer earlier this offseason. He hit .246/.298/.454 with 28 home runs and 31 stolen bases in 146 games last season.
Though he never completely fulfilled his tantalizing potential (by not staying at shortstop or becoming a truly premier hitter), Upton already sits as one of the five most productive position players in Devil Rays / Rays history. His consistent presence will certainly be missed by fans of the team.