Earlier today we thought that Overwatch's Competitive Mode was a delayed to late July. The reason was that the game's official Twitter account said that they were aiming to release "in mid-to-late July". Apparently Twitter doesn't know everything.
When we reached out to Blizzard they wrote that the mode is still on track for its June release, and that the tweet was an error. This means that we'll still get to test our skills against the best of the best this month after all.