Ousted Red Bull Formula 1 team boss Christian Horner made a surprise appearance at Jerez on Saturday, fuelling speculation about a potential interest in MotoGP team ownership.<br>Horner was present at the Spanish Grand Prix alongside Formula 1 CEO Stefano Domenicali, with both spotted in the paddock on Saturday morning.<br>The Briton spent the final practice session of the weekend in the factory ...<a class='more' href='https://www.motorsport.com/motogp/news/former-red-bull-f1-boss-christian-horner-sparks-intrigue-with-motogp-appearance/10815287/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>