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Dewayne Dedmon, San Antonio Spurs (Player Option)

The San Antonio Spurs center should be considered a lock to opt out of his $3 million deal in pursuit of a bigger and longer contract, but he's not enough of a known commodity to register here. Though he's served as a tremendous defensive presence and consistent rim-roller during his fourth NBA season, there's always the concern that no one other than Gregg Popovich could squeeze this type of production from his 7'0" frame.

George Hill, Utah Jazz (Unrestricted)

Though there are exceptions to the rule (one of them will show up far later in these rankings), point guards in their 30s don't tend to provide too much production. George Hill will celebrate his 31st birthday in May, which will make each and every franchise question whether he can remain an obvious positive for the duration of a four-year contract.

Serge Ibaka, Toronto Raptors (Unrestricted)

Despite his longstanding reputation, Serge Ibaka hasn't been too impactful in 2016-17, regardless of whether he's suited up for the Orlando Magic or Toronto Raptors. ESPN.com's real plus/minus has him at 0.91, which ranks him No. 24 among power forwards alone, sandwiched between Luc Mbah a Moute and Channing Frye. NBA Math shows that he's played exactly at the league average, leaving him outside the top 140 slots, regardless of position.

Patty Mills, San Antonio Spurs (Unrestricted)

He's excelled in his rotation role for the San Antonio Spurs, shooting 44.5 percent from the field and 42.2 percent from downtown while often functioning as an efficient, albeit low-volume, distributor. But talented as this 28-year-old guard may be, can he really rank in the top 10 when he's playing a career-high 21.9 minutes per game and thriving in the system he's become so intimately familiar with over the course of the last six years?

Mason Plumlee, Denver Nuggets (Restricted)

A uniquely talented center, Mason Plumlee has become one of the league's most underrated players at his position. His playmaking skills and athleticism around the basket make him an intriguing top-end backup or low-end starter, but his lack of untapped potential pushes him to the honorable mentions. Of all those listed here, he has the best chance of playing like a top-10 free agent, but upside will reign supreme in the lowest ranked spot.

Players Who Aren't Going Anywhere

Whether due to loyalty, a franchise's overwhelming desire to retain them or the unlikelihood of turning down an option, these players are technically able to become free agents but, for all intents and purposes, can't serve as legitimate targets: