NFL superstar Travis Kelce has bought a significant share in a three-year-old racehorse that has a sweet link to girlfriend Taylor Swift. Travis Kelce is showing no signs of stopping as he embarks on a new venture outside football and show business. The celebrity has reportedly forked out a lot of cash for shares in a racehorse that’ll he hopes will return the investment in record time. The 34-year-old still loves playing on the field, but appears to be showing interest in ventures he can sink his teeth into when he does eventually give up his cleats. Travis’ new racehorse has a sweet connecti…