Fenway Sports Group Holdings, LLC (FSG), is an American multinational sports holding conglomerate which owns NASCAR's RFK Racing, Major League Baseball's Boston Red Sox, the Premier League’s Liverpool, the National Hockey League's Pittsburgh Penguins, and the TMRW Golf League's Boston Common Golf.

Roush Fenway Keselowski Racing, doing business as RFK Racing, is an American professional stock car organization that currently competes in the NASCAR Cup Series. One of NASCAR's largest racing teams in the 2000s and early 2010s, Roush formerly ran teams in the NASCAR Xfinity Series, NASCAR Craftsman Truck Series, ARCA Menards Series, Trans-Am Series and IMSA Camel GT. The team currently fields the No. 6 Ford Mustang GT full-time for driver/co-owner Brad Keselowski and the No. 17 Mustang full-time for Chris Buescher as well as the No. 60 part-time for David Ragan in the NASCAR Cup Series.