Microsoft Corp.’s Activision unit is offering teams competing in its professional Call of Duty League financial relief as the esports industry faces broad challenges generating profit.The teams, including ones owned by sports-business billionaires Robert Kraft and Stan Kroenke, will no longer be required to pay the league’s entry fees, according to a blog post on Tuesday. Previously collected fees will be returned. A lawsuit this year from a former owner identified the fees as $27.5 million per ...