Tuesday on Champion Mindset - How Joe Mazzulla has applied his blue belt in jiu jitsu to coaching the Celtics. [▻](https://video.twimg.com/amplify_video/21017

Sports • 2026-09-20 19:00 UTC • By Billy Odell Tucker-Robinson

Tuesday on Champion Mindset - How Joe Mazzulla has applied his blue belt in jiu jitsu to coaching the Celtics. [▻](https://video.twimg.com/amplify_video/2101725040568045568/vid/avc1/1080x1350/sRYq_4CwPeTHKtdt.mp4) https://video.twimg.com/amplify_video/2101725040568045568/vid/avc1/1080x1350/sRYq_4C…

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