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Dallas Mavericks Announce Summer League Roster and Schedule Featuring No. 1 Pick Cooper Flagg

Originally posted on Dallas Hoops Journal
By Grant Afseth | Last updated Jul 3, 2025 9:03 PM ET

The Dallas Mavericks have officially revealed their full roster and game schedule for the 2025 NBA Summer League in Las Vegas. The headliner: No. 1 overall pick Cooper Flagg, who is set to make his highly anticipated professional debut.

Flagg, the 6-foot-9 forward from Duke, will be joined by a promising group of rookies, returning players, and undrafted free agents aiming to earn training camp invites or two-way contracts. The Mavericks begin Summer League play on July 10 against the Los Angeles Lakers at 7:00 p.m. CT on ESPN.

2025 Dallas Mavericks Summer League Roster

No.	Player	Pos.	Ht.	Wt.	Birthdate	Prior to NBA/Home Country	NBA Exp.
5	Miles Kelly	G	6-6	190	1/26/03	Auburn/USA	R
9	Ryan Nembhard	G	6-0	180	3/10/03	Gonzaga/Canada	R
17	Melvin Ajinça	F	6-8	218	6/26/04	LDLC ASVEL/France	R
27	Nolan Hickman	G	6-2	190	5/7/03	Gonzaga/USA	R
28	Zhuric Phelps	G	6-4	190	5/15/02	Texas A&M/USA	R
32	Cooper Flagg	F	6-9	205	12/21/06	Duke/USA	R
33	Jamarion Sharp	C	7-5	235	8/26/01	Ole Miss/USA	R
34	Aliou Diarra	C	6-9	192	12/31/01	APR/Mali	R
35	Matthew Cleveland	G/F	6-7	210	9/15/02	Miami/USA	R
36	Maxwell Lewis	F	6-7	215	7/27/02	Pepperdine/USA	2
37	Jordan Hall	F	6-7	215	1/14/02	Saint Joseph’s/USA	1
43	Matt Cross	F	6-7	230	2/21/01	SMU/USA	R
44	Obinna Anochili-Killen	F	6-8	220	9/27/01	Marshall/Nigeria	R
45	Moussa Cissé	C	6-11	229	9/10/02	Memphis/Guinea	R
46	Gabe McGlothan	F	6-7	235	3/3/99	Grand Canyon/USA	R
47	Jaylin Williams	F	6-8	245	7/26/00	Auburn/USA	R

Also featured on the roster are rookie guards Ryan Nembhard and Miles Kelly, who recently signed two-way contracts with Dallas. Nembhard, a floor general out of Gonzaga, and Kelly, a dynamic wing from Auburn, provide additional intrigue for a Mavericks team looking to identify depth in its young core.

The frontcourt includes Melvin Ajinça, who returns for his second Summer League with the Mavericks after being selected 51st overall in the 2024 NBA Draft. Other new additions include Nolan Hickman (Gonzaga), Zhuric Phelps (Texas A&M), Jamarion Sharp (Ole Miss), Aliou Diarra (Mali), and Maxwell Lewis (Pepperdine), who played last season with the Lakers before being traded.

The roster also features Matthew Cleveland (Miami), Jordan Hall (Saint Joseph’s), Matt Cross (SMU), Obinna Anochili-Killen (Marshall), Moussa Cissé (Guinea), Gabe McGlothan (Grand Canyon), and Jaylin Williams (Auburn). Several players have G League or overseas experience and bring versatility to the lineup.

Dallas assistant coach Josh Broghamer will serve as Summer League head coach. Broghamer, now entering his third season with the Mavericks, previously held player development and scouting roles with the Cleveland Cavaliers and Milwaukee Bucks.

2025 Dallas Mavericks Summer League Schedule

Game	Date	Opponent	Time (Central)	Venue	TV
1	Thursday, July 10	vs. L.A. Lakers	7:00 p.m.	Thomas & Mack Center	ESPN
2	Saturday, July 12	@ San Antonio Spurs	3:00 p.m.	Thomas & Mack Center	ESPN
3	Monday, July 14	vs. Charlotte Hornets	5:30 p.m.	Thomas & Mack Center	NBA TV
4	Wednesday, July 16	@ Philadelphia 76ers	7:00 p.m.	Thomas & Mack Center	ESPN
5	TBD	TBD	TBD	Thomas & Mack Center	TBD

Based on the results of the first four contests, a fifth game will be scheduled. All games will be played at the Thomas & Mack Center or Cox Pavilion on the UNLV campus.

With Cooper Flagg making his debut and several intriguing young prospects competing for roles, Dallas is expected to be one of the most-watched teams during this year’s Summer League.