MINNEAPOLIS -- Twins manager Paul Molitor wasn't sure who would start Game 2 of Saturday's doubleheader before Thursday's game, but after the 6-2 win over the Mariners, it was decided that right-hander Adam Wilk will be called up from Triple-A Rochester to start against the Indians.
Left-hander Adalberto Mejia was already slated to pitch in Game 1, but the Twins needed a starter for Game 2, and Wilk, right-hander Chris Heston and left-hander Hector Santiago were the top candidates. Wilk, who was scheduled to start on Friday for Rochester, will need to be added to the 40-man roster and will be making his first start with the Twins after posting a 3.86 ERA in two relief appearances with Minnesota before being designated for assignment.
Santiago, on the 10-day disabled list since June 7 with a left shoulder strain, is eligible to be activated on Saturday, and threw a bullpen session before Thursday's game. But the Twins deemed he wasn't ready to return just yet.
Another option was Heston, who was stretched out for a start with Triple-A Rochester on Tuesday, but struggled, allowing four runs on six hits over 2 1/3 innings. But he would've been starting on short rest, throwing 51 pitches on Tuesday. 
Wilk could be the club's designated 26th man for the doubleheader if the Twins don't want to make a move to their 25-man roster. But they also could call up Wilk and bring up another long reliever as the 26th man as insurance.
Worth noting
• Left-hander Glen Perkins has continued to face hitters every Tuesday and Friday in Florida as part of his rehab from last year's shoulder labrum surgery. He's making progress, hitting 89 mph with his fastball on Tuesday, and could start a rehab assignment with Class A Advanced Fort Myers in the next 10 days.
• Twins first baseman Joe Mauer will host his second annual Mauer and Friends Kids Classic at Target Field on Friday at 11 a.m. CT. Mauer will be joined by local athletes such as the NHL's Zach Parise, Ryan McDonagh and Paul Martin and the NFL's Ryan Harris, Michael Floyd, Kyle Rudolph and Chad Greenway. Former Twins Justin Morneau and Corey Koskie will also be on hand. They'll be meeting with 20 patients from Gillette Children's Specialty Healthcare on the field. Fans can make a donation to Gillette by texting MAUER to 41444, and there's also an online auction (http://auctions.mlb.com) from Friday to Sunday.