The N.B.A. and N.H.L., which were deep into their 2019-20 seasons before they were suspended last month, may be unable to finish their seasons because the cities they play in have restrictions on nonessential travel and because of the difficulty of acquiring enough test kits to ensure the safety of the players, team staffs and workers in arenas.
The N.B.A. and N.H.L., which were deep …
