The sports brand will be working with G2 to produce a lifestyle apparel line, alongside multiple other things.
The deal is set to promote healthy eating habits among fans and players.
Qualified teams will be competing for a share of $100,000.
The League will see a tournament structure and will start as soon as April.
The tournament will see competition take place over several months, across eight unique titles.
G2's revamped Fortnite line-up now consists of five players.
The American communications company will be the official 5G and Fibre Innovation Sponsor of the esports organisation.