LeBron James is headlining this summer’s NBA free agency moves. But he isn’t the only big man hitting the market in the 2026 offseason.
Some of these bigs aren’t like James, who will have a stable role next season regardless of where he plays. For these players, their entire 2026-27 fantasy value depends on the right free-agency move.
This summer could determine whether these centers and power forwards become major fantasy contributors or afterthoughts in 2026-27, and fantasy managers won’t want to miss out.
Why Free Agency Matters for Big-Man Fantasy Value
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We’ve talked recently about the balance bigs need to anchor their teams. They need to contribute regular steals and blocks as well as rebounds, and maintain a strong presence in the paint. The best bigs are also consistent scorers (think Nikola Jokic and Victor Wembanyama), which can make them ideal fantasy assets.
For some bigs, frontcourt logjams and offense-first coaching schemes are keeping them from reaching this level of fantasy excellence. The right free-agency move, however, can lead to a better system fit, unlocking usage spikes and fantasy value.
Big Men Most Dependent on Free Agency
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Xavier Tillman
Tillman’s minutes were supposed to go up when he was traded to the Charlotte Hornets at the February deadline and beef up their frontcourt. That was far from the case as he averaged a laughable 4.5 minutes per night. The veteran center is an efficient shooter who improves with opportunity, and he can be a solid fantasy category asset for rebounds, steals, and blocks. All he needs is the right free-agency move to unlock consistent playing time.
Isaiah Hartenstein
He’s a championship-winning center on a title-defending team. But the Oklahoma City Thunder have financial limitations they need to sort out this summer, and that could impact them picking up Hartenstein’s $28.5 million option. He would be heavily courted if he hits the market, particularly by teams in desperate need of a multi-faceted center. Hartenstein also has multi-cat potential, but that depends on a team giving him enough opportunities.
GG Jackson Jr.
Jackson is an outlier on our list for a couple of reasons. He isn’t a free agent until next summer, and the Grizzlies are expected to pick up his club option in 2026. But while his role in Memphis appears safe, his minutes could be impacted by the moves Memphis makes when the market opens at the end of June. The Grizzlies are expected to be active over the summer, especially when it comes to unloading Ja Morant. But if they pick up pieces that create a frontcourt logjam, Jackson’s opportunities could be at risk.
Walker Kessler
The Jazz are expected to try to keep RFA Kessler, but what does that mean for his fantasy value? He missed most of the 2025-26 season recovering from shoulder surgery, and Utah’s frontcourt is now crowded with Jaren Jackson Jr. joining Lauri Markkanen up top. Kessler can play 30-plus minutes per night and is a double-double threat thanks to his rebounding skills, but he will have to play consistently (either in Utah or somewhere in dire need of a center) to regain fantasy value.
The Bottom Line for 2026-27 Fantasy Basketball Big Men Waiting on Free Agency
Fantasy managers shouldn’t sleep on bigs during free agency, especially if one move can be the difference between fantasy dominance or irrelevance. Managers in redraft leagues should keep an eye on the systems and schemes these big men land in and note who their competition will be for playing time. The owners who correctly target these pivotal free-agency moves can gain an advantage heading into 2026-27 fantasy drafts.
Which big men in 2026-27 fantasy basketball have their value tied to free agency?
Xavier Tillman, Isaiah Hartenstein, GG Jackson Jr., and Walker Kessler all have fantasy outlooks that could shift depending on roster moves, role changes, and team fit.
How can one free-agency signing change a big man’s fantasy ceiling?
A new destination can increase minutes, usage, and opportunity while reducing frontcourt competition and creating a better system fit.
When should I draft or trade for these big men?
Managers should monitor free-agency outcomes and act once playing time, roster construction, and role expectations become clearer.
Are there risks with chasing big men waiting on free agency?
Yes. Frontcourt logjams, limited minutes, and uncertain team situations can reduce fantasy value even for talented players.
How do I monitor these free-agency situations?
Track free-agency decisions, team roster construction, and expected competition for minutes before making draft or trade decisions.
Which fantasy formats are most affected by these big men?
Redraft leagues are especially sensitive because immediate role changes and opportunity shifts can significantly affect player value.