What are Overwatch league tokens, when where they introduced and how do you get them?

Looking to redeem some league tokens in Overwatch League but not sure how? Well, look no further as we have all the information you need to access them. Last week, Blizzard Entertainment announced BlizzCon 2021, promising a sneak peek at Overwatch 2 as well as the behind-the-scenes making of the Overwatch universe. With...