Pay close enough attention to the Brickyard 400 this weekend at the Indianapolis Motor Speedway and you might just catch a budding legend in sports. Not a driver, but Indiana Fever star Caitlin Clark. Josh Berry’s No. 4 Stewart-Haas Racing Ford will be rocking a Caitlin Clark-themed paint scheme. Clark’s name will be spelled out on the car, as will the slogan “RAINING 3s.” Painini America, a sports trading card and memorabilia store, is the sponsor for the car this weekend. “Never did I ever think I would appear on a racecar,” Clark told WISH News 8. “Honestly I grew up watching NASCAR. My mom…