4 best seasons for a closer in St. Louis Cardinals' history

Bruce Sutter - 1984

Bruce Sutter played only four of his 12 seasons with the Cardinals, but he led the league in saves in three of those four years. The All-Star closer racked up 45 saves in 1984. He was voted to play in the 1984 All-Star Game, he finished 3rd in Cy Young voting that year, and he finished sixth in the National League Most Valuable Player race.

The game was vastly different in 1984 than it is today, but Sutter's 45 saves were the most across all of baseball, and they are tied for the fourth most in St. Louis Cardinals' franchise history. The Hall of Famer had a 1.54 ERA, 3.05 FIP, 1.08 WHIP, and an ERA+ of 227 that year! Perhaps the most impressive aspect of Sutter's 1984 season was the fact that he threw a whopping 122.2 innings without starting a single game.

He appeared in 71 games while finishing 63 of them. On average, Sutter threw 1.2 innings per outing that year. That type of production from a closer is unheard of in today's game, and it only further cements Sutter's 1984 season as one of the best for a Cardinal closer. 42 of his 71 games were on one day or fewer of rest.

Sutter was utterly dominant that year. Batters slashed .245/.281/.344 against him, and he walked fewer than 5% of batters he faced. Very few times did Sutter get himself into trouble late in games. Sutter's high innings total paired with his league-leading 45 saves make his 1984 season as a closer one of the best in franchise history.

Lee Smith - 1991

Lee Smith's 18-year career featured him playing for eight different teams. He spent four years in St. Louis, and his best year of his career happened to come in 1991. His 47 saves led all of baseball, and they are tied for the second most in Cardinals' franchise history with the next player on this list.

1991 was Smith's first full season in St. Louis after being traded to the Cardinals in 1990, and he didn't disappoint. He finished the season with a 2.34 ERA, 2.45 FIP, and a 1.14 WHIP. He was elected to participate in the All-Star game, he finished second in Cy Young voting to Tom Glavine of the Atlanta Braves, and he placed 8th in National League Most Valuable Player voting.

Batters had a slash line of .249/.281/.352 against Smith in 1991, and he walked just 4.3% of the men he faced. The Hall of Fame reliever blew only five saves that year, giving him a save percentage of 90.4% that year. Lee Smith appeared in only 67 games, and he finished 61 of them. He was a part of 60 of the team's 84 wins that year.

Lee Smith's innings total -- 73 -- was ample for a closer, but his save percentage narrowly being greater than 90% brings his prowess down slightly. He threw more than one inning 15 times, so he was asked to get up and down more often than his predecessor on this list. Lee Smith was a lockdown closer in 1991 for the Cardinals. They didn't make the playoffs that year, but Smith left his mark on the organization nonetheless.

Jason Isringhausen - 2004

Jason Isringhausen is the all-time saves leader in St. Louis Cardinals' franchise history. He has 217 saves to his name while Lee Smith in second place has 160 saves. Izzy is the best closer in Cardinals' history, bar none. His 2004 campaign stands tall amongst his other seasons wearing the birds on the bat, though.

Isringhausen saved a National League-leading 47 games that year -- tied for second most in franchise history. He appeared in 74 games, finishing 66 of them. He threw a total of 75.1 innings in 2004, but he wasn't elected to the All-Star game, nor did he finish with any other accolades. Eric Gagne of the Los Angeles Dodgers and Brad Lidge of the Houston Astros were the only two relievers to receive Cy Young votes in the National League that year, though neither eclipsed Isringhausen's save total.

Izzy finished the year with a 2.87 ERA, 3.02 FIP, 1.035 WHIP, and an ERA+ of 199, a figure 11 points higher than Gagne's. He struck out 23.1% of the batters he faced, and he walked just 7.5% of them. Hitters slashed .199/.265/.319 against the Cardinals' closer. He was virtually unhittable late in games. Isringhausen did blow seven saves that year, but he played a role in 65 of the team's 105 wins.

Isringhausen threw 11.2 innings in the postseason that year, and he allowed five runs across nine appearances. The bulk of his work was against the Houston Astros, and he logged three saves in the National League Championship Series that year. Fans of the Cardinals in the 2000s fondly remember Jason Isringhausen and his performances in 2004 stand amongst the greatest in franchise history for a closer.

Trevor Rosenthal - 2015

Trevor Rosenthal holds the franchise single-season record in saves at 48. He set that record in 2015, the same year the Cardinals won 100 games. Rosenthal pitched in 59 of the team's wins while recording a save in nearly half of them. He blew only three saves that year, and his 94.1% save percentage was the fourth-best in the National League in 2015.

Rosenthal finished the 2015 campaign with a 2.10 ERA, 2.42 FIP, 1.27 WHIP, and a 10.9 K's per nine ratio in 68.2 innings. He was voted to the National League All-Star team, and he finished 17th in voting for the National League Most Valuable Player that year. Rosenthal went more than one inning only seven times, so he doesn't hold a candle to Sutter's impressive output back in 1984.

As is the case with most closers, Rosenthal appeared in games while on one day or less of rest 19 times in 2015. He didn't fare overly well on zero days rest, but that's a tall ask of any pitcher. Rosenthal was most effective after two days off.

Batters slashed .238/.308/.312 against the Cardinals' closer that year. He struck out nearly 30% of the batters he faced while walking just 8.7% of them. Rosenthal's 48 saves in 2015 are tied for the 20th most in MLB history. The right-hander allowed only three home runs that year, and his 188 ERA+ was the best of his career by a long stretch.

Rosenthal still has an interest in pitching in the majors this year, and the folks over at the Dealin' the Cards podcast (formerly Noot News) have been pushing for a reunion with the 34-year-old pitcher.