James Dolan partners with rival to seek sponsorship cash for MSG empire — including Sphere in Las Vegas

James Dolan on Thursday turned to a longtime rival to handle all sponsorship deals for his Madison Square Garden empire, including the soon-to-open MSG Sphere in Las Vegas. The Knicks and Rangers owner teamed with entertainment giant Oak View Group, co-founded by Dolan’s former business partner partner Irving Azoff to create a new company, Crown…