Serena Williams has expanded her assets exponentially in recent years, thanks not only to the prize money won on the tennis courts across the globe, but also thanks to sponsorships and all the investments she has made. Serena Williams and Lincoln, for example, are in their fourth year of partnership.Previously, Serena was the face of the British car manufacturer Aston Martin to which she had worked for some commercials destined for the American market. But from 2016 Serena changed, lending her face precisely to the Lincoln Navigator L, where …