Ohio State's Taylor Decker (68) and Jeff Heuerman celebrate after the NCAA college football playoff championship game against Oregon Monday, Jan. 12, 2015, in Arlington, Texas. Ohio State won 42-20. (AP Photo/David J. Phillip)

Photos: Biggest sports moments of 2015

From the first ever College Football Playoff, to the USWNT winning the World Cup, take a look at some of the biggest sports of 2015.