Blizzard will reveal a new skin each day in the run up to the event.
So far fans have been given a look at Legendary skins for D.Va, Reinhardt and Winston.
It all began with a look at Waveracer D.Va, followed by Gridironhardt Reinhardt and then Catcher Winston.
Expect another sporty Overwatch skins reveal to take place later today (August 6).
You can check out the new skins, as well as all the returning skins in the gallery above.
The Summer Games event makes its PS4, Xbox One and PC debut on August 9.
A brand new Summer Games event also means the return of Lucioball.
Blizzard has also confirmed that Lucioball will make its return alongside a brand new arena set in Busan, South Korea.
The Rocket League-inspired game mode tasks players with scoring the most goals before the timer runs out.
Last year even saw the introduction of Copa Lucioball, which is a ranked version with fresh rewards.
The news comes as Blizzard and Hasbro team up to release a new Overwatch-themed Nerf gun.
Unveiled at ChinaJoy in Shanghai, the upcoming entry in the Nerf Rival range is a replica of D.Va’s Light Gun.
According to Polygon, the Nerf gun has a three-round capacity, fires at 80 feet per second, comes with a spring-action mechanism and sports D.Va’s bunny charm.
Reaper fans will also be able to pick up a Nerf version of his Wight-skinned Hellfire shotgun.