THE NEW TOUGHNESS TRAINING FOR SPORTS : MENTAL, EMOTIONAL, AND PHYSICAL CONDITIONING FROM ONE OF THE WORLD'S PREMIER SPORTS PSYCHOLOGISTS / by Loehr, James E., author 171019

“…Loehr has been training world-class athletes, from Olympic gold medalist speed-skater Dan Jansen to tennis stars Monica Seles and Jim Courier His bestselling book, Mental Toughness Training for Sports, is a classic. …”