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Who doesn't love a good fantasy baseball sleeper? Fantasy managers are always on the hunt for the next hidden gem that could provide them significant value in the upcoming season. It is not always easy to find players underrated by fellow teams in one's league. However, such players can be the difference between winning and losing.
There are valuable fantasy baseball sleepers that will emerge at every position. However, when it comes to relief pitchers, there are a number of valuable players who can fall through the cracks. Depending on the scoring of your league, finding saves later in drafts can be incredibly useful, especially if you're not chasing top stars like Emmanuel Clase.
5 potential fantasy baseball sleepers at reliever position in 2025
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#1. Jeff Hoffman
Jeff Hoffman was one of the top relief pitchers on the free-agent market this offseason. However, after failing physicals with both the Baltimore Orioles and Atlanta Braves, he eventually joined the Toronto Blue Jays. The failed physicals might benefit managers, as Hoffman could be one of the most valuable fantasy baseball sleepers this season.
Following the departure of Jordan Romano, Hoffman is the clear favorite to save games for the Blue Jays this season, and with an average draft position of 213, he could be a true bargain on draft day.
#2. A.J. Puk
The Arizona Diamondbacks might be one of the strongest teams in the National League this season. However, they have yet to commit to their full-time closer.
The club has a few options it can turn to in save situations, including Justin Martinez and A.J. Puk. Both players are vying for the position, but Puk's experience could give him the upper hand. He could be a cheap source of saves.
#3. Ryan Pressly
Ryan Pressly has enjoyed a strong MLB career. However, he may have fallen off fantasy radars after pitching ahead of Josh Hader with the Houston Astros.
Like Puk, Pressly could emerge as the go-to option for saves with the Chicago Cubs. While Porter Hodge was impressive last season, Pressly could be a sneaky effective fantasy baseball sleeper this year.
#4. Aroldis Chapman
Aroldis Chapman is one of the best closers in MLB history and has a chance to build on his all-time saves numbers this year with the Boston Red Sox.
Like most fantasy baseball sleeper relievers, these uncertain depth charts could allow managers to add an affordable source of saves and strikeouts late in drafts.
#5. Kenley Jansen
Kenley Jansen will likely find himself inducted into the National Baseball Hall of Fame when all is said and done. While he may no longer be the pitcher he once was, he could be effective this year for the Los Angeles Angels.
Jansen was solid for the Red Sox last season, posting a 3.29 ERA with 27 saves in the process. He may no longer be a force on the mound, but his 243 average draft position, according to CBS, might be too good to pass up on later in drafts.
