The 22-year-old appeared in 11 games for the Rangers, converting each of his six save opportunities. A native of the Dominican Republic, Feliz posted a 0.00 ERA with a 1-0 record in September, fanning 12 batters over 11 1/3 innings. The right-hander permitted just three hits against two walks while holding opposing batters to a .081 average and .128 on-base percentage.
In a dominating seven-inning span from Sept. 1-22, Feliz allowed just one hit and one walk, with seven strikeouts and four saves. On Sept. 25 in Oakland, the young flamethrower closed out a 4-3 victory to earn his 38th save of the season, giving the Rangers their first AL West title since 1999.
Feliz finished the year with 40 saves, the most by any rookie in Major League history. He is tied for fourth on the Rangers' all-time single-season saves list -- Francisco Cordero holds the club record, with 49 saves in 2004.
James Hall is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.