Question of the day #264 Sports

1.       X is the youngest and one of the few players who have one all the four major professional championships in his game and he being the only player to do it in a row. He is the only player in his sport to have won U.S. Amateur for three consecutive years. He along with two other athletes, very successful in their sport have endorsed for one of the famous brand of P&G. Who is this ‘X’ I am talking about?