National Hockey League Commissioner Gary Bettman announced Tuesday the adoption of a plan to bring hockey back in July. The measure is similar to one approved by the players’ union last week and sets up a 24-team playoff that will occur without fans in two hub cities that are yet to be determined. Some locations that have been floated include Chicago, Dallas, and Vancouver. Ice technology has improved dramatically in recent decades. Still, it would be hard to imagine having a marathon session of three games played in Dallas with the thermometer topping 100 degrees each day for over a month straight. The league has yet to announce protocols for testing or how to handle positive cases.