http://www.pcgamer.com/twitch-announces-exclusive-overwatch-league-livestreaming-deal/

With just one day remaining before the Overwatch League is scheduled to kick off, Twitch has announced that it will carry livestreams of all of the league's matches as the "exclusive worldwide third-party provider" in all regions outside of China. The two-year deal will also see the development of rewards and other offerings for fans, including in-game items and OWL "Cheermotes." 

"The Overwatch League is making a major impact on esports by reshaping the industry with city-based teams," Twitch COO Kevin Lin said. "Given Overwatch's consistent reign as a top viewed game by our community, we look forward to offering their pioneering style of league play to a large and passionate fanbase that will be able to bond over not only their favorite plays, but hometown pride."