The Overwatch League had a big day with the release of the cities that will be fielding teams for the league. The news was further propelled to the general public through the use of an older media, television.
One Reddit user, willfbren, was able to catch a commercial for the Overwatch League during the broadcast of the ESPYs. The commercial itself didn't have anything that you wouldn't expect from a typical esports advertisement for an event, but its placement during a big sporting event will significantly boost the conversation around esports as a whole.
The marketing push for Overwatch League is in full swing now, and as long as the information keeps coming they could potentially rekindle their relationships with endemic teams that have broken ties with the game.