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On Monday, DraftKings announced it has raised an additional $300 million in Series D funding. The notable aspect of the latest round focuses most on the prominent investors, including direct money from multiple professional sports leagues. Additionally, the total valuation of DraftKings is now at $1.25 billion, according to the Wall Street Journal.

This introduces yet another chapter in the ongoing rivalry between DraftKings and its New York counterpart, FanDuel.

Where FanDuel recently concluded a round of funding worth $275 million thanks in large part to contributions from Google Capital, Time Warner and Comcast Inc. (putting the company’s worth at $1.3 billion), DraftKings’ latest addition showcases its own expansion of major partnerships.

FOX Sports contributed the largest portion of DraftKings’ round, while other contributions came directly from Major League Baseball, the National Hockey League and a new partner, Major League Soccer.

According to a report, FOX Sports is going to assume an 11 percent stake in DraftKings. This officially answers any lingering questions about DraftKings’ latest round of funding, after an expected deal with Disney fell through. However, the Boston-based daily fantasy company still concluded a deal with Disney-owned ESPN for (eventual) exclusive advertising.

In the continued to race for daily fantasy supremacy, DraftKings and FanDuel remain the highest profile and most advanced names in the field, as each continues to one-up the other in securing both team and league partnerships as well as major media deals. Yahoo, which recently added a daily fantasy component of its own, is going to have to play catchup. And armed with a growing list of major backers, both DraftKings and FanDuel will be tough to overtake.

Editor’s note: An earlier version of this story had DraftKings’ valuation at $1.2 billion. It was reported at $1.25 billion.

Image via @Haydenhbird