Relief Pitcher: No. 29, Rafael Soriano
Perchance the most difficult decision on this list was whether or not Rafael Soriano should be featured. Despite only spending one season with the Rays, Soriano's 2010 is probably the second-best season for a reliever in Rays history.
Soriano was traded to the Rays from the Braves for 2021 World Series Champion Atlanta Brave Jesse Chavez, who was the main return the Rays received for Akinori Iwamura a month earlier. Soriano's 3.6 Championship Win Probability Added is third all-time for single-season marks, starter or reliever, in Rays history behind Rodney (4.0) and Price (3.8) in 2012 and 2013, respectively. His 45 saves is the the third-highest season total behind Rodney and Alex Colome in 2012 and 2017. It had set a franchise record through the 2010 season.
While the strikeout total wasn't dominant, the 1.73 ERA certainly played. In August of that season, Soriano became the sixth pitcher to record a save while pitching an immaculate inning in a game against the Angels. He finished eighth in Cy Young polling.
Further solidifying himself in Rays lore, Soriano had one of the quirkiest celebrations in baseball history. Soriano would untuck his jersey after every save because when you get home from work, you untuck your shirt for a job well done.