Serena Williams joined the ownership group of the Toronto Tempo on Monday, the WNBA's inaugural Canadian franchise set to tip off in May 2026. The league confirmed the equity stake without disclosing terms. Williams becomes the first tennis athlete to hold WNBA equity and the third active or recently-retired athlete in league ownership, following Candace Parker at Las Vegas and Kelsey Plum's minority position in an unnamed franchise.
Toronto paid a $115 million expansion fee in May 2024, the highest in WNBA history and triple the $40 million Golden State paid in 2023. The Tempo ownership group is anchored by Kilmer Sports, the Tanenbaum family's holding company that also owns the NHL's Maple Leafs and NBA's Raptors, plus Bell Canada and Canadian entertainer Drake. Williams joins a roster that already includes five investor names the team has not publicly disclosed. The franchise will play at Coca-Cola Coliseum, the 8,400-seat lakefront arena the Maple Leafs own through their AHL affiliate.
The timing matters for two reasons. First, the WNBA's media rights package begins in 2026—the exact year Toronto debuts—with $200 million annually from Disney, Amazon, and NBCUniversal, roughly triple the current deal. Canadian broadcast rights remain unsettled; Rogers and Bell both declined to bid during the main auction. Bell's dual role as Tempo investor and Canada's second-largest broadcaster positions it to negotiate a carve-out that keeps games on TSN rather than the U.S. streams, but no deal has closed. Second, Williams already owns stakes in the NFL's Miami Dolphins and Formula 1's Mercedes-AMG team, making this her third major sports property. Her venture fund, Serena Ventures, deployed $111 million across 85 companies through 2023, with 78% going to underrepresented founders. The fund's sports portfolio includes Tonal, a $1.6 billion home-fitness hardware maker, and the women's soccer club Angel City FC, where she joined the founding cap table in 2020.
For the Tempo, Williams delivers immediate cross-border marketing leverage. Canadian women's basketball has three WNBA players—Kia Nurse, Bridget Carleton, and Aaliyah Edwards—but lacks the household name density of U.S. markets. Toronto's season-ticket deposits reached 6,000 within 72 hours of opening in May, but the franchise needs sustained interest to justify the Coliseum's mid-tier capacity. Williams has 16 million Instagram followers and existing relationships with Nike, Gatorade, and Audemars Piguet, all of which sponsor WNBA players individually but have not signed league-wide deals. Her presence creates optionality for local brands—think Scotiabank, Lululemon, or Air Canada—to attach women's basketball spend to a proven asset rather than a startup league risk.
The league's expansion math has shifted. Commissioner Cathy Engelbert said in November that Franchise 17—expected in 2028—will likely command $150 million or more, citing Portland and Philadelphia interest. Toronto's success or failure will calibrate that number. If the Tempo average 7,000 tickets per game in Year 1, the league can point to non-U.S. demand and push fees higher. If they struggle below 5,000, future international expansion stalls and the next franchise stays domestic.
Watch the Tempo's head coach hire, expected by March 2025. Nicki Collen at Baylor and Kara Lawson at Duke are the two college names that keep surfacing in agent conversations. The franchise will also need to announce a jersey sponsor by June 2025 to hit the WNBA's standard 12-month lead time before tipoff. Williams's apparel line, S by Serena, has not previously sponsored a team property, but the Tempo kit contract is worth monitoring for a potential direct brand play rather than a third-party deal.
The expansion fee alone makes Toronto the second-most-valuable WNBA franchise at launch, behind only Golden State's implied $120 million valuation at entry. Williams now owns pieces of teams worth a combined $9 billion across four leagues.
The takeaway
Williams brings cross-border marketing scale to a franchise betting **$115M** that Canadian demand can match U.S. metro economics by Year 3.
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