As NFL training camps commence, excitement builds among fantasy managers as the draft season approaches. This period offers valuable insights into teams' strategies for the upcoming season while also posing the risk of overreactions. A third-string wide receiver makes a remarkable catch, leading to predictions of stardom, while a starting quarterback throws multiple interceptions, causing instant disapproval from fantasy enthusiasts. Such reactions may stem from the nature of fantasy managers, who can be predisposed to dramatic responses to camp happenings.

Training camps are rife with valuable information as teams conduct position battles and explore player roles. For instance, the quarterback situation in Indianapolis and the running back competition in Dallas are under scrutiny, with players vying for increased responsibilities, returning from injuries, or making their mark in their rookie seasons. The term 'sleeper' is often regarded as overused in fantasy contexts, but it generally denotes players available late in drafts who possess the potential to outperform expectations. Each player discussed here is typically available in the later rounds of drafts, with the opportunity to become a significant contributor to fantasy success.

A noteworthy candidate for fantasy managers is Sam Darnold, who currently holds an average draft position (ADP) of QB28, 178th overall. Darnold experienced a remarkable season in 2024, guiding the Minnesota Vikings to a 14-3 record and achieving a QB7 fantasy finish, throwing for 4,319 yards and 35 touchdowns. Despite the Vikings opting for J.J. McCarthy as their future quarterback and acquiring Geno Smith in Seattle, Darnold's situation remains favorable. Andrew Cooper from Fantasy Alarm points out that Darnold is entering a quarterback-friendly system in Seattle under offensive coordinator Klint Kubiak. Despite concerns regarding Seattle's offensive line, which is ranked among the lowest in the league, Darnold's potential for success in a top-tier offense should not be disregarded.

Another quarterback, Daniel Jones of the Indianapolis Colts, has an ADP of QB32, 238th overall. Currently overlooked by fantasy managers, Jones hasn't secured the starting role yet and has struggled in previous seasons. Although rookie Anthony Richardson has gained attention, reports suggest that Jones has built a significant lead in the quarterback competition. While Richardson displays impressive athleticism, he struggled with accuracy, making Jones a more viable fantasy option, especially considering past performances where he achieved over 3,000 passing yards and added meaningful contributions on the ground.

Javonte Williams, currently with an ADP of RB38, 112th overall, was once viewed as a promising player during his rookie season with the Denver Broncos. After battling injuries, Williams set a career-low rushing total in 2024 but claims to be fully healthy now in Dallas. Although he faces competition from Miles Sanders and rookie Jaydon Blue, there are indications that Williams may reclaim a substantial role. If he returns to form, there's potential for significant fantasy impact, particularly following the limited success of backup running backs in Dallas last year.

In a similar vein, J.K. Dobbins has an ADP of RB40, 119th overall. Dobbins has demonstrated significant potential, averaging 5.2 yards per carry in his career, but his ability to stay healthy has been a concern. After signing with the Denver Broncos, there's hope for Dobbins to regain relevance within a system that has successfully utilized dual-back systems in the past. If he can secure a favorable share of the workload, Dobbins may surprise fantasy managers seeking value in late drafts.

Tre Harris, a second-round pick by the Los Angeles Chargers, has an ADP of WR54, 135th overall. Following an impressive college career at Ole Miss, including over 1,000 receiving yards in just eight games, Harris now has the opportunity to step up after the retirement of Mike Williams. With a likely path to become the Chargers' No. 2 receiver opposite Ladd McConkey, Harris's potential to rise in the depth chart is also supported by analysts who foresee a high passing volume from the team this season.

Despite the lack of optimism regarding the Cleveland Browns this year, Cedric Tillman provides a potential late-round option for fantasy managers, with an ADP of WR65, 169th overall. Though Tillman's previous stats may not impress, he showed flashes of productivity when given an opportunity last season, averaging significant receptions and yardage over a brief four-game stretch. If he secures a prominent role alongside Jerry Jeudy and other targets, there is potential for his performance to exceed expectations in the 2025 season.

At the tight end position, Isaiah Likely holds an ADP of TE17, 145th overall. Likely has experienced fluctuating usage in the Baltimore Ravens offense, unable to surpass Mark Andrews in targets. However, analysts believe that should Andrews miss time or regress, Likely could become a highly relevant tight end option. With both players entering contract years, the Ravens may strategize to leverage Likely's skills more this season, presenting opportunities for him to carve out a significant role.

Additionally, Brenton Strange of the Jacksonville Jaguars is viewed as a potential breakout candidate with an ADP of TE21, 177th overall. Strange demonstrated promise when given the chance to step in for Evan Engram last season, showcasing his ability to make plays. With a supporting cast in place and a coaching emphasis on the tight end position, Strange may offer value to fantasy managers looking for under-the-radar players who can contribute meaningfully in 2025.