Relief pitching has changed dramatically over the past 50 years.

The role has evolved from multi-inning firemen to specialized closers tasked with protecting the game’s final three outs. Because the position has transformed so much, Hall of Fame voters have struggled to establish consistent standards for evaluating relief pitchers.

Aroldis Chapman, Craig Kimbrel, and Kenley Jansen will all have a very strong case after they each retire.

That inconsistency has left several outstanding bullpen arms outside the Hall of Fame despite careers that compare favorably to relief pitchers already enshrined.

One of the best benchmarks remains Hall of Famer Bruce Sutter.

The split-finger fastball pioneer was elected to Cooperstown in 2006 after revolutionizing the closer role during the late 1970s and early 1980s. While his peak was relatively short, his dominance changed how relief pitchers were viewed throughout baseball.

 

Sutter finished with:

• 300 saves
• 2.83 ERA
• 861 strikeouts
• 24.0 WAR
• 6 All-Star selections
• 1979 NL Cy Young Award
• World Series champion

His election proved that relievers do not necessarily need overwhelming longevity if they redefine their position or dominate their era.

Using Sutter as the benchmark, several overlooked relief pitchers deserve another serious Hall of Fame conversation.

1. John Franco

John Franco quietly became one of the greatest left-handed relievers in baseball history.

The longtime Cincinnati Reds and New York Mets closer built his Hall of Fame résumé through remarkable consistency, durability, and reliability over 21 seasons.

Franco finished with:

• 424 saves
• 2.89 ERA
• 975 strikeouts
• 1,119 innings pitched
• 4 All-Star selections

At the time of his retirement, Franco ranked second on the all-time saves list and remains the all-time saves leader among left-handed pitchers.

Compared to Bruce Sutter, Franco accumulated 124 more saves while posting a nearly identical ERA over a significantly longer career. Although he lacked a Cy Young Award, his consistency and longevity make him one of the strongest overlooked relievers in baseball history.

2. Francisco Rodríguez

Few closers have ever reached the heights Francisco Rodríguez achieved during his peak.

“K-Rod” burst onto the scene with the Anaheim Angels before becoming baseball’s most dominant closer during the late 2000s.

Rodríguez finished with:

• 437 saves
• 2.86 ERA
• 1,142 strikeouts
• 6 All-Star selections
• 2008 single-season record of 62 saves

His 62-save campaign still stands as the Major League record and remains one of the greatest seasons ever produced by a relief pitcher.

Compared to Sutter, Rodríguez recorded significantly more saves, more strikeouts, and comparable effectiveness over a longer career. His historic peak alone deserves far greater Hall of Fame recognition than it has received.

3. Joe Nathan

Joe Nathan was one of the most dominant closers of the 21st century.

After beginning his career as a starter, Nathan became nearly automatic in the ninth inning, anchoring the Minnesota Twins bullpen for more than a decade.

Nathan finished with:

• 377 saves
• 2.87 ERA
• 976 strikeouts
• 6 All-Star selections
• 26.6 WAR

Advanced metrics strongly support Nathan’s Hall of Fame case. His WAR actually surpasses Bruce Sutter’s while maintaining nearly identical effectiveness throughout his career.

Compared to Sutter, Nathan posted more saves, more strikeouts, a similar ERA, and greater overall value according to modern analytics. He has one of the strongest Hall of Fame cases among recently retired relievers.

4. Dan Quisenberry

Dan Quisenberry may be the greatest reliever many younger baseball fans know very little about.

The Kansas City Royals submarine specialist dominated the American League throughout the 1980s using pinpoint command rather than overpowering velocity.

Quisenberry finished with:

• 244 saves
• 2.76 ERA
• 859 innings pitched
• 5 All-Star selections
• 5 Rolaids Relief Awards

He led the American League in saves five times while finishing among the league’s best pitchers year after year.

Compared to Sutter, Quisenberry posted a lower ERA while dominating his era just as thoroughly. His relatively modest save total reflects the different usage patterns of relievers during the early 1980s, when closers often entered games earlier and pitched multiple innings.

Modern Hall evaluations increasingly recognize those contextual differences, making Quisenberry one of the Veterans Committee’s strongest bullpen candidates.

5. Fernando Rodney

Fernando Rodney authored one of the most unusual and underrated relief careers in baseball history.

Pitching for 11 different organizations across 17 seasons, Rodney reinvented himself multiple times while remaining one of baseball’s most effective late-inning relievers.

Rodney finished with:

• 327 saves
• 3.80 ERA
• 1,022 strikeouts
• World Series champion
• 3 All-Star selections

His unforgettable 2012 season with the Tampa Bay Rays ranks among the greatest ever by a closer, as he posted a microscopic 0.60 ERA while converting 48 saves and finishing fifth in the AL Cy Young Award voting.

Compared to Sutter, Rodney accumulated more saves and strikeouts while enjoying remarkable longevity. Although his career ERA is higher, his ability to remain an effective closer for nearly two decades deserves greater appreciation than it has received.

Why Bruce Sutter Strengthens These Cases

Bruce Sutter unquestionably changed baseball history and earned his Hall of Fame plaque by revolutionizing the closer position.

His election also established an important Cooperstown principle: relief pitchers should be judged by more than traditional counting statistics alone.

Some closers dominate through overwhelming peak performance.

Others succeed through remarkable longevity.

Others redefine the role itself.

John Franco became the greatest left-handed closer in baseball history.

Francisco Rodríguez still owns the single-season saves record.

Joe Nathan quietly built one of the strongest analytical résumés ever by a reliever.

Dan Quisenberry dominated an entire decade while helping redefine bullpen usage.

Fernando Rodney reinvented himself repeatedly while compiling one of the longest successful closing careers in Major League history.

When measured against the standards that helped Bruce Sutter reach Cooperstown, all five deserve serious Hall of Fame reconsideration.

Whether through the Veterans Committee or the Contemporary Baseball Era Committee, John Franco, Francisco Rodríguez, Joe Nathan, Dan Quisenberry, and Fernando Rodney have earned another opportunity to be evaluated among baseball’s greatest relief pitchers.