Every once in a while one of the internet's many talented designers will release some concept art reimagining the logos or uniforms of this sports league or the other. Addison Foote has put out some interesting takes on the NBA. These are intended as modern reimaginings, but some are more modern than others.
His take on the Mavs logo looks like a mash between the old M with a hat logo and the current font the New England Patriots use.
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I used both old and new Mavs logos as inspiration for this.