Tennis Star Sloane Stephens Provides Her Aggressive Ethos to Startup Investing

Expert tennis player Sloane Stephens has joined the ranks of expert athletes investing in startups, backing caffeine-infused energy bar maker Quantum Electricity Squares.

In February, Ms. Stephens invested in Quantum Strength father or mother Curated Nutritious Vitality Meals Inc., together with a modest group of other angel traders, such as her fiancé Jozy Altidore, a Important League Soccer participant, according to PitchBook Details Inc. Michael Bryan and Sam Querrey, both equally professional tennis gamers, also allotted cash to the corporation, the data provider stated.

Ms. Stephens, winner of the 2017 U.S. Open up tennis championship, mentioned the financial investment is an extension of her own interest in specific products and solutions.

The move by Ms. Stephens follows a selection of superstars and athletes who have jumped into startup investing in current several years.

For illustration, Tonal Systems Inc., the San Francisco-based creator of an at-dwelling digital body weight device, counts professional athletes among the its existing investors, which includes Stephen Curry and Klay Thompson of the NBA’s Golden State Warriors and tennis winner Serena Williams. The firm previous month elevated $250 million for its Collection E funding spherical.