A report in May indicated that veteran assistant coach Joe Boylan would be joining Taylor Jenkins‘ staff in Milwaukee, but he decided instead to join Dusty May‘s staff with the Mavericks, reports Marc Stein of The Stein Line (via Twitter).

Boylan will be the head coach for the Mavs during summer league action, the team confirmed in a press release (Twitter link).

We have more from around the Southwest:

• The Grizzlies will be without Karim Lopez (mild left hamstring strain sustained during the pre-draft process) and Walter Clayton (mild right knee sprain) during the Salt Lake City summer league, according to a team spokesperson (Twitter link via Damichael Cole of The Memphis Commercial Appeal). Both players will be reevaluated before the main summer league in Las Vegas. Lopez was the 21st overall pick in last month’s draft, while Clayton was selected 18th overall in 2025.
• Grizzlies guard Scotty Pippen Jr. had his full $2.46MM salary for 2026/27 guaranteed by remaining on Memphis’ roster through July 3, notes Keith Smith of Spotrac (via Twitter). Pippen’s contract was previously partially guaranteed for $350K. The 25-year-old was limited to just 10 appearances last season due to a pair of toe surgeries (not on the same foot).
• Expect the Spurs to have a quiet offseason from here on out after drafting four players, re-signing Harrison Barnes, and adding veteran forward Tobias Harris in free agency, per Michael C. Wright of ESPN.com. Wright thinks Harris is likely to come off the bench behind Julian Champagnie, who’s returning to San Antonio on a three-year, $45MM deal.