CLEVELAND -- The Indians are no closer to knowing the future of Grady Sizemore's injured left knee.

Sizemore, on the 15-day disabled list retroactive to May 17, with a deep bone bruise, is set to undergo a fresh battery of testing this week, manager Manny Acta said.

Most distressing is that surgery is still an option.

"He's going to have some more visits this week to address what kind of treatment he's going to do," Acta said. "He's got to see the doctors first, go to see those doctors and see what the best way to treat this will be."

Choo gets back to basics to break skid

CLEVELAND -- Shin-Soo Choo didn't need a magic number to break out of a slump on Friday, only to remember who he was.

Choo moved to the No. 2 spot in the order, where he will hit again Saturday, and homered twice, going 3-for-4 with three RBIs.

"It had nothing to do with where he hit, it had to do with his name being Shin-Soo Choo," manager Manny Acta said. "I think I told you that before.

"I don't think when he went to the plate, he had a helmet with a big two on it reminding him where he was hitting."

Choo raised his batting average to .300 with the effort, good enough for the highest average in the order among regular Indians starters, entering Saturday. Trevor Crowe, called up from Triple-A Columbus on May 16, is hitting .310 entering Saturday's game against the Reds.

Choo hit a rough spell entering Friday, going 3-for-17 in his previous five games. Reds manager Dusty Baker didn't see any of that hitter Friday.

"Choo can hit," Baker said. "He's a good player. The more I see of him, the more I realize he's a player.

"They say he's been cold. He didn't look cold to me."

Skidding Valbuena sits against Reds

CLEVELAND -- Luis Valbuena is slumping, and Manny Acta took him out of the lineup on Saturday against the Reds.

Valbuena is 2-for-30 over his last 12 games, and with shortstop Jason Donald up from Triple-A Columbus, Valbuena has shared time at second base with Mark Grudzielanek.

Valbuena drew a walk Friday, going 0-for-2 before being pulled for pinch-hitter Matt LaPorta in the eighth inning. He hit a hard liner to shortstop in the sixth inning on Friday for his final out, and at-bats like those, Acta said, give the skipper faith that Valbuena is on the verge of breaking out.

"I don't think he's overmatched," Acta said. "You're not overmatched when you're hitting a line drive to shortstop like he did yesterday. He's a guy that we still have to give him some at-bats, see if we can get him to snap out of it.

"He hasn't been hitting, but this guy had 30-something extra-base hits last year. We just have to continue to work with him."

Donald, acquired from the Phillies last season in the Cliff Lee trade, has taken over the shortstop position in recent days, with Asdrubal Cabrera on the disabled list.

Part of the reason for that, Acta said, is that Donald has played only at shortstop, and the club wants to keep him in his regular position.

"He's been a solid shortstop for his whole career," Acta said of Donald. "The injury forces us to play him at his regular position.

"Our thought is he could be an everyday guy. I don't think when you're going to trade for guys like we did, you're looking for people who are backup guys."

Duncan returns to roots in Tribe debut

CLEVELAND -- Shelley Duncan grounded out in his only at-bat on Friday, but in doing so, he made a little bit of Indians history.

Friday was Duncan's Tribe debut, giving him another tie to his father, St. Louis pitching coach Dave Duncan. The Duncans are the sixth father-son duo to play for the Indians in franchise history.

Dave Duncan was a catcher in Cleveland, playing in 231 games for the Indians during the 1973-74 seasons. Duncan later began his coaching career in Cleveland in 1978.

"It is pretty neat," Shelley Duncan said. "It's pretty neat to be able to wear the same hat my dad wore."

Shelley Duncan's mother, Jeanine, came to Cleveland this week after her son was called up from Triple-A Columbus on Friday.

"Mom came to town last night and talked about how she and dad got married here," Shelley Duncan said. "A bunch of the old-timers are still around this place that were here when dad played and coached. They have good stories."