"We thought better of it and obviously, we didn't do it," Sveum said Friday. "There's no plans to do it against the White Sox [June 18-20] either."
Rizzo was batting .362 in 53 games, and was 7-for-15 in his last five after missing one week with a sore right wrist. He hit his 18th homer on Friday, his first since returning to the lineup on June 2.
"We have to be careful expecting him to hit a home run every other day," Sveum said.
Another Minor Leaguer Sveum is keeping an eye on is third baseman Josh Vitters, who was batting .267 with nine homers and 13 doubles in 56 games at Iowa. And Sveum does watch the youngsters, checking video of their games.
"He's been swinging the bat really well lately," Sveum said. "He [doesn't have] great command of the strike zone. He puts the ball in play, doesn't strike out a lot for that kind of hitter. He still has to develop defensively. He's got to get better defensively before we think of [promoting him]."