5. Joe Nathan
Joe Nathan only spent two seasons in a Texas Rangers uniform. As Nathan spent the 2012 and 2013 season in Texas and was an All-Star both years. Although Nathan spent 16 years in the MLB, his two years in Texas were arguably the best of his career.
During his career with the Rangers Nathan went 9-7 2.09 ERA in 133 games with 80 saves. Nathan is 6th all-time in Rangers history with 80 saves, but the more impressive part is his conversion rate.
Nathan converted 80 of 86 save opportunities during his time with the Rangers. Only blowing six games in 86 chances is remarkable. Although the impressive statistics do not end there.
In 129 innings pitched with the Rangers Nathan only allowed nine home runs. A masterful pitcher on the mound as Nathan had full command of all his pitches and knew how to attack batters. Allowing opponents to only hit .198 off him as Nathan was almost untouchable on the mound.
Nathan also pitched in the post-season with the Rangers in 2012. They did not win the World Series, but Nathan was part of the team as he pitched in one game.
His days in Texas may be over, but Joe Nathan continues his MLB career. Most recently pitching in 2016 with the Chicago Cubs and San Francisco Giants. Nathan is currently 8th all-time in saves with 377 during his 16 year career.