The San Antonio Spurs are officially on the clock. With the recent signing of Taelon Peter to a training camp deal, the front office has signaled a clear intent to leave no stone unturned in their pursuit of competitive depth. However, the work isn’t done yet. With two critical vacancies remaining on their 20-man camp roster, the Spurs are staring at a golden opportunity to cultivate talent, spark competition, and potentially unearth the next diamond in the rough.
While the team has limited flexibility regarding standard roster spots, the preseason is the ultimate proving ground. Bringing in hungry, fringe players with “chip-on-the-shoulder” mentalities is exactly what a young, evolving squad needs to push its stars and raise the practice intensity.
Here are three high-upside sleepers the Spurs need to bring in for an audition this fall.
1. Trevor Keels: The G-League Sniper
Trevor Keels’ path to the NBA has been anything but linear. A former 42nd overall pick in 2022, Keels has spent two seasons fighting for scraps, logging limited minutes with the New York Knicks and the Miami Heat. But while his top-tier resume looks thin, his G-League production tells a completely different story.
Last season, Keels exploded for the Sioux Falls Skyforce, averaging 18.7 points per game while shooting an elite 40.1% from beyond the arc on high volume (8.3 attempts per game). The Duke product isn’t just a shooter—he’s a legitimate off-ball threat who can drive, defend, and space the floor. With two years of two-way eligibility left, Keels is a low-risk, high-reward project. His ability to hit triples in bunches—including a jaw-dropping 12-for-12 performance—would provide the kind of perimeter gravity that the Spurs were crying out for last year.
2. Rienk Mast: The “Stretch Five” Unicorn
If there is one player who should be top of the list, it’s undrafted Nebraska standout Rienk Mast. After an impressive showing in the Summer League, where he posted 15.2 points and 9.0 rebounds per night, it’s a mystery why he’s still available.
Mast is the literal definition of the modern “stretch five.” At 6’10”, he possesses a pure, repeatable stroke from deep, allowing him to pull opposing rim protectors out of the paint. His passing is sharp, his offensive rebounding is elite, and his basketball IQ makes him a perfect fit for a team that prioritizes movement and skill over raw physicality. Even if the Spurs don’t have a standard spot for him right away, using an Exhibit 10 contract to stash him in the G-League system would be a masterstroke of roster management. Keep him close; Mast is exactly the type of big man who will force his way into a rotation sooner rather than later.
3. RJ Davis: The Pro-Ready Sparkplug
Spurs fans already know this name, and they should be excited about the possibility of bringing him back. After a legendary collegiate career at North Carolina, RJ Davis proved during the 2026 Summer League in Vegas that he is a professional-level scorer.
Averaging 12.1 points in Vegas with the Silver and Black and a massive 18.4 PPG in his inaugural G-League campaign, Davis is a proven bucket-getter. While he might be somewhat redundant in a backcourt already crowded with talent, he offers an undeniable “perimeter spark” that the Spurs occasionally lacked during their cold shooting stretches last season. Adding Davis to the camp roster creates instant, high-intensity competition for the guards already in place, and if he continues to hit shots at his current clip, he could force the front office into a very difficult decision.
The Strategy: Competition Breeds Contention
The Spurs are in a unique position. They aren’t just looking for bodies to fill seats; they are looking for players who can disrupt the status quo. Bringing in Keels, Mast, or Davis doesn’t just fill roster spots—it injects life into the practice facility.
In the NBA, the difference between a good team and a great one is often found at the end of the bench. If the Spurs can land just one of these hidden gems, they’ll have secured a player who can challenge the starters, push the rotation players, and provide reliable insurance if injury strikes. The Spurs are building something special in San Antonio, and finding an undervalued contributor during training camp is exactly how championships are won. Which one of these three will get the call? Keep your eyes on the training camp roster—the audition process is about to begin.
