"Yeah, Alex is playing center field," Guillen said. "I know it's not easy when you're not playing well and people are on you every at-bat, every play. This is Chicago. You've got to be tough and you've got to go out there and perform."
Rios returned to the lineup on Saturday after spending the club's previous two games on the bench while the recently recalled Alejandro De Aza started in center field. In his return to the lineup, Rios went 0-for-3 and was booed loudly after allowing Josh Reddick to score from first on an eighth-inning single.
"I'm not going to throw the towel in, I'm not going to protect him like everybody thinks I am," Guillen said after the game. "I think that guy should be at third base, no doubt."
Rios started in center field and batted sixth, going 1-for-5 with an RBI, in Sunday's 5-3 loss, while Brent Lillibridge made just his fourth start in the month of July in left field to give Juan Pierre a day off.