Smoke signals

• First baseman Nick Swisher shagged balls in the outfield and took extra batting practice ahead of Friday's series opener with the Royals. The 33-year-old has been a designated hitter in 10 of his 18 games since returning from the DL on June 12, and he's drawn just three walks during that span.

"More work is better. You can always rest," Francona said. "You've got to be so strong mentally to be an everyday player in our game."

• Double-A Akron outfielder Tyler Naquin and infielder Joe Wendle, both of whom fractured their hands last week, underwent surgery at the Cleveland Clinic on Thursday. Naquin had been batting .313 through 76 games with Akron, while Wendle owned a .259 average with eight homers on the year. The two are out indefinitely.

• Right-hander Travis Banwart has reached agreement with the SK Wyverns of the Korea Baseball Organization. Banwart went 5-2 with a 3.12 ERA in 16 starts with Triple-A Columbus this season, but he was moved to the Temporary Inactive List on Friday ahead of the deal's announcement.

Alec Shirkey is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.