Carl actually wrote "My Game Cap" under his sprawling signature in white ink against the dark blue brim. This was done after the cap was originally sold by Leland's in 2012. One of Baseball's finest Triple Crown winners, beloved Carl Yastrzemski was one of the game's top all-time sluggers, spending all of his Major League career with the Boston Red Sox. Here's a gorgeous red-and-blue cap from the 18-time All-Star, dating to the mid-1970, from their 1975 near miracle. The Roman Pro Maker cap is a Size 7 with a leather band. Yaz's number 8 is written under the brim in vintage ink.