VIDEO: Rich Eisen sets personal best in 40-yard dash

One of the most beloved traditions of combine weekend is NFL Network host Rich Eisen running the 40-yard dash in his suit and tie.

Eisen, who runs in support of St. Jude Children's Research Hospital, blazed to a personal-best time of 5.94 seconds Monday, topping his previous mark of 5.98 seconds set in 2014.