Mark is a former Major League Baseball first baseman, playing fourteen seasons for the Texas Rangers, Atlanta Braves, Los Angeles Angels of Anaheim and New York Yankees. One of the most prolific switch hitters in MLB history, Mark was an integral part of the Yankees' 27th World Series championship in 2009, leading the American League in home runs and RBI while finishing second in the Most Valuable Player Award balloting. He was a three-time All-Star, won five Gold Glove Awards and three Silver Slugger Awards and also holds the all-time major league record for most games with a home run from both sides of the plate, with 14. Now an ESPN MLB analyst, Mark has also shown strong business acumen, having made angel investments in the private aviation company Wheels Up and Juice Press.