SANTA MONICA, Calif. — Food critics, beware. One of the hottest young chefs and entrepreneurs around also is a terror on the ice. Sang Yoon, a South Korea-born chef whose beer-and-burger joint, Father's Office, has helped launched a casual-food craze in the fine-dining industry, is a fast-skating forward in an amateur hockey league here.

During one recent game, Yoon — who briefly played goalie in college — sped across the rink and slammed his short, muscular frame into a 6-foot-5 enforcer on another team. The stunned enforcer banged hard into the boards, and Yoon got his respect. Read more...