J.R. Celski (Clive Mason/Getty Images)

J.R. Celski (Clive Mason/Getty Images)

J.R. Celski, who won an Olympic silver medal for the United States in Sochi, headlines the ISU World Short Track Speed Skating Championships in Montreal, Canada this Saturday and Sunday at 8 PM ET.

Celski will compete in the 500m, 1000m, 1500m and relay. He has already collected eight world championship medals in his career.

Eight-time Olympic medalist Apolo Ohno will provide analysis.

In addition, the ISU World Cup Speed Skating Finals take place in Heerenveen, Netherlands Friday-Sunday at 5 PM ET.

American speed skaters Brittany Bowe and Heather Richardson will both race in the 500m, 1000m and 1500m, while Shani Davis will skate in the 1000m and 1500m.

Olympic gold medalist Dan Jansen will commentate the action.