Retired athletes sometimes express frustration toward rising stars, a sentiment rooted in complex emotions and experiences. In MMA, especially, the old guard sometimes sees new fighters getting attention and feels that the sport has changed too much,

The three-time NCAA Division I national champion wrestler boldly backed himself to beat Khamzat Chimaev as a -1000 favorite before facing former two-weight ONE titleholder, Reinier de Ridder, at UFC Des Moines on Saturday night.