PHOENIX, AZ - SEPTEMBER 11: Mark McGwire #25 of the Los Angeles Dodgers in the dugout during the MLB game against the Arizona Diamondbacks at Chase Field on September 11, 2015 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)
PHOENIX, AZ - SEPTEMBER 11: Mark McGwire #25 of the Los Angeles Dodgers in the dugout during the MLB game against the Arizona Diamondbacks at Chase Field on September 11, 2015 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)