"It's just something that's day by day, series to series on when we need to make an adjustment," Molitor said. "You try to plan ahead a little bit with who and when that might happen. But I think we're probably going to stay with eight going into Boston. Something could change during that series, but we don't have to decide that right now because we're doing fine the way we are."
Outfielder Oswaldo Arcia, on the DL since May 4 with a right hip flexor strain, is on a rehab assignment at Triple-A Rochester, but remains hitless in four games, going 0-for-11 with a walk. First baseman/designated hitter Kennys Vargas is also at Triple-A after being optioned on May 16, and is faring well offensively, hitting .333/.395/.615 with three homers and seven RBIs in 11 games.
Arcia figures to remain on a rehab assignment until he gets going offensively, but he could be activated from the DL next week. The Twins will continue to monitor both Arcia and Vargas, but for now, Molitor said they're fine with having an extra reliever.
"Going into Boston with eight relievers might not be the worst thing," Molitor said. "So we'll see how it works out."
• Right-hander Ervin Santana made his first appearance in an extended spring training game on Saturday, Twins general manager Terry Ryan said. He threw two innings and also threw a bullpen session afterward to reach 70 pitches. He's scheduled to throw another bullpen session on Tuesday. Santana, who was suspended 80 games for the use of a performance-enhancing substance, is eligible to return on July 4.
• Right-hander Aaron Slegers was named the Twins' Minor League Player of the Week, the club announced on Sunday. Slegers, the organization's tallest pitcher at 6-foot-10, threw a shutout for Class A Advanced Fort Myers on May 24. The 22-year-old has a 2.59 ERA with 31 strikeouts and eight walks in 48 2/3 innings for Fort Myers.
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, follow him on Twitter @RhettBollinger and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.