O.J. Mayo may very well be the x-factor as the Memphis Grizzlies try to upset the number one seeded San Antonio Spurs in the first round of the 2011 NBA Playoffs. Mayo has been coming off the bench as the 6th man, bringing a much needed scoring punch off the bench. The Grizzlies have been without Rudy Gay since the All-Star break and will need Mayo to help replace some of his numbers.