NEW YORK, NY - MARCH 28: Justin Tuck attends the 2017 Garden of Laughs at Madison Square Garden on March 28, 2017 in New York City.

Justin Tuck is famous for his success on the football field. As a defensive end for the New York Giants and Oakland Raiders, he played in two Superbowls and reportedly brought in $40 million over his 11-year NFL career. But since retiring in 2016, Tuck has been making a name for himself in another highly competitive industry — finance. In May, Tuck graduated from The Wharton School at the University of Pennsylvania, ranked by Forbes as the No. 1 business school in the country, with a Master of Business Administration in management.

In July, he will begin a career at Goldman Sachs as a vice president in the private wealth management division. (The prestigious investment bank is known to be highly selective — it hired only 3 percent of over 300,000 applicants in 2015.) Tweet Speaking on a panel at Wharton's Global Forum in New York City recently, Tuck attributed his achievements in both football and business to one habit: preparation. "My success in that Super Bowl was just being prepared," Tuck says. "I mean, you're foolish if you go into that game and you haven't done all of your film work, all of your practice, ate the right things and so on." "My successes at Wharton came when I was prepared," says Tuck. "Not being prepared for an economics test — you normally don't do well on that," he says with a laugh. "And I have some examples for you guys."