Gary Mack is a leading sports psychology consultant and counselor who has worked with athletes in the NBA, NFL, NHL, WNBA, and Major League Baseball. He is president of two consulting firms, Sports Assist and Planning Solutions; the director of sports psychology for Griffey International; and team counselor for the Phoenix Suns and Phoenix Mercury.

David Casstevens is a senior writer for the Fort Worth Star-Telegram and author of the Charles Barkley biography, Somebody's Gotta Be Me.

Alex Rodriguez is the third baseman for the New York Yankees. Three times voted the American League Most Valuable Player, he was born in New York City, moved with his family to their native Dominican Republic when he was four, then moved to Miami with his family at the age of eight. The only person in baseball history to hit 400 home runs before his thirtieth birthday, he hit his first home run at the age of six. Drafted out of high school, he played for the Seattle Mariners and then the Texas Rangers before being signed by the Yankees. Alex lives in New York City and Miami, Florida.

Alex Rodríguez juega la tercera base para los Yankees de Nueva York. Ha sido elegido dos veces como jugador más valioso (MVP) de la Liga Americana. Nació en Nueva York y a los cuatro años se mudó con su familia a su país de origen, la República Dominicana. Cuando Alex tenía ocho años, regresaron para radicarse en Miami. El único jugador en la historia del béisbol que ha bateado 400 jonrones antes de cumplir los treinta años de edad, ¡Alex bateó su primer jonrón a los seis años! Seleccionado en la escuela secundaria entre los mejores del país por los Marineros de Seattle, jugó para los Rancheros de Texas antes de ser contratado por los Yankees. Alex, su esposa Cynthia y su hijita viven en la ciudad de Nueva York y en Miami, FL.