"It's nothing serious, but we're taking it day to day," Ryan said. "I'm not too worried about it, and neither is anybody else."
The Twins are also waiting on pitching prospects Alex Meyer and Trevor May to make their Spring Training debuts. Meyer missed four days earlier this spring to attend his grandfather's funeral in Indiana, while May missed two days with the flu.
Both right-handers threw back at the club's Spring Training complex in Fort Myers on Friday, and they are expected to get into games soon. But Twins manager Paul Molitor hasn't pinpointed when just yet. Both are in the mix for the last spot in the rotation.
"We had to adjust our schedules with those guys missing some time," Molitor said. "They'll be out there in the near-term."
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. This story was not subject to the approval of Major League Baseball or its clubs.