4. Neftali Feliz
Hard throwing Neftali Feliz was called untouchable during his time with the Texas Rangers. Feliz spent seven seasons with the Rangers. Started his career on the team in 2009 and left the Rangers during the 2015 season.
During his Rangers career Feliz went 13-10 2.69 ERA in 216 games with 93 saves. Feliz also won Rookie of the Year in 2010 along with an All-Star appearance. That season Feliz went 4-3 2.73 ERA with a league leading 59 games finished and 40 saves.
Feliz is fourth all-time on the Texas Rangers saves list. He is 93 of 107 in saves opportunities during his seven season in Texas. That is not all, he has also been to the post-season twice with the team. Feliz went to the World Series twice with Rangers, but did not win a ring.
A huge part of the Rangers post-season was Feliz. As he went 0-0 1.93 ERA in 18 playoff games with 7 saves. Feliz was a lock-down closer for the Rangers that helped get them into the World Series twice.
Feliz was a dominant closer during his time with Texas allowing hitters to just a .189 average. Since 2015 Feliz has dropped off some and struggled at the MLB level. He recently signed a deal with the Milwaukee Brewers and will likely be their closer in 2017.