Balfour, 36, agreed to a two-year, $12 million deal with the Rays as owner Stu Sternberg, team president Matthew Silverman and manager Joe Maddon were on hand to introduce the newest member of the Rays.
Sternberg called this move a "big deal" for the Rays and he expects Balfour to have success in the late innings this season.
Last season, Balfour saved 38 games in 41 chances with a 2.59 ERA, 1.20 WHIP and 72 strikeouts in 62 2/3 innings for the Oakland Athletics. Earlier in the off season, it was reported that Balfour would sign with the Baltimore Orioles, but after a controversy surrounding a failed physical, the Orioles distanced themselves from Balfour.
Just how much did Balfour want to return back to the Rays?
Balfour is expected to replace Fernando Rodney as the team's primary closer and will wear the No. 50 jersey in 2014.
Welcome back, Grant. We sure did miss you in Tampa Bay.