George Pyne's Bruin Capital recently sold its stake in the Two Circles marketing agency at an internal rate of return of more than 60%. That deal was just the latest exit to turn a profit for Bruin in recent years, with the respective sales of On Location to Endeavor and Deltatre to Bain Capital also generating big payouts. Here, Pyne, the founder and CEO of Bruin, talks to SportsPro CEO Nick Meacham about how the firm has struck gold with its investments in the sports industry.