The Celtics are waiving Luis, Michael Scotto of USA Today reports.
Luis had a two-way contract with Boston, but he was unable to maintain his grip on the roster during training camp. The St. John's product went undrafted in the 2025 NBA Draft, and he'll hope to either find a home elsewhere ahead of the new year or perhaps join the G League's Maine Celtics otherwise.
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Celtics' RJ Luis: Plays in preseason opener
Rotowire
Luis (knee) generated four points (2-2 FG) in three minutes of Wednesday's 121-103 preseason win over the Grizzlies.
Luis didn't appear in a Summer League game due to left knee soreness, but he's since been traded from Utah to Boston and recovered from the injury. The undrafted rookie was effective in limited action, but he'll have a tough path to regular-season minutes with the Celtics.
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Celtics' RJ Luis: Being shipped to Boston
Rotowire
The Celtics are acquiring Luis (knee) and two future second-round picks from the Jazz in exchange for Georges Niang, Shams Charania of ESPN reports.
Luis, who went undrafted in the 2025 NBA Draft, offers Boston some swingman depth but likely doesn't have a clear pathway to fantasy relevance to open the 2025-26 season. The St. John's product was unable to participate in the Summer League due to a knee injury, and it's unclear if the issue will carry into training camp this fall. Luis has a two-way contract as well, so most of his playing time figures to come in the G League during his rookie year.
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Jazz's RJ Luis: Another absence coming
Rotowire
Luis (knee) is out for Friday's Summer League game against the Bulls, Andy Larsen of The Salt Lake Tribune reports.
Luis will remain sidelined for a seventh straight contest due to left knee soreness, and it doesn't appear as though he'll be able to make his professional debut during the Summer League at this point. With Utah missing several key players Friday, Elijah Harkless and Max Abmas should be in line for a boost in ball-handling duties.
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Jazz's RJ Luis: Still out against Spurs
Rotowire
Luis (knee) won't play in Monday's Summer League game against the Spurs, Ben Anderson of KSL News Salt Lake City reports.
Left knee soreness will cost Luis a fourth consecutive game Monday. The St. John's product has still yet to make his Summer League debut, with his next opportunity to suit up coming Wednesday against the Wizards.
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Jazz's RJ Luis: Remaining out Sunday
Rotowire
Luis (knee) won't play in Sunday's Summer League game against the Warriors, Andy Larsen of The Salt Lake Tribune reports.
Luis will remain on the shelf due to left knee soreness, and he has yet to suit up in Summer League. Ace Bailey (hip) and Walter Clayton (hamstring) have also been ruled out, with their next chance to play coming Monday against the Spurs.
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Jazz's RJ Luis: Sidelined Monday
Rotowire
Luis (knee) has been ruled out for Monday's Summer League matchup against the Grizzlies, Andy Larsen of The Salt Lake Tribune reports.
Luis won't make his professional debut Monday due to left knee soreness. The wing signed a two-way contract with the Jazz after going undrafted in the 2025 NBA Draft. He starred at St. John's last season, averaging 18.2 points, 7.2 rebounds, 2.0 assists and 1.4 steals in 31.7 minutes per game while shooting 43.9 percent from the field and 33.6 percent from three over 35 appearances. His next chance to suit up will come Tuesday against the Thunder.
