CHICAGO -- Paul Konerko was placed on the seven-day disabled list with a mild concussion prior to Friday's series opener with the A's.
Konerko sustained the concussion in the seventh inning of Tuesday's loss to the Royals when he was hit by Jarrod Dyson's left elbow in the right temple as Dyson beat out an infield grounder to second baseman Gordon Beckham. The White Sox captain appeared dazed at first but stayed in the game after being checked out on the field. He did not play in Wednesday's 2-1 loss to the Royals.
The White Sox will make a corresponding roster move before Saturday's contest. Left-handed-hitting Dan Johnson and right-handed-hitting Conor Jackson figure to be replacement options at Triple-A Charlotte, with the pair having the ability to play first base and the outfield. With the 40-man roster full, the White Sox would likely move left-hander John Danks to the 60-day disabled list to make room.
Third baseman Brent Morel, who is on the 40-man, remains a possibility, if he's ready to return after battling back problems. Current third baseman Kevin Youkilis could move to first base in that instance. Dewayne Wise, whom general manager Ken Williams mentioned as potential help for the big league roster when he was signed to a Minor League deal, also could get the call, with Dayan Viciedo being able to move to designated hitter.
Adding an extra reliever seems plausible until Konerko is eligible to return this Friday in Kansas City, entrusting a temporary starting job to Jordan Danks for the next week. That move seems less likely with Philip Humber's recent move to the bullpen
Prior to the game, White Sox manager Robin Ventura explained that Konerko said he felt fine after Tuesday's initial contact but felt worse when he came to U.S. Cellular Field the next day.
"He seems fine. But again, in talking to him and him having to go play is two different things," Ventura said. "As far as being nauseated, it's not as bad as the other day but he does feel it. He does have all the symptoms of a concussion.
"They put him through a series of tests to make sure. It's not easy to get on or off this list. It's more out of our hands, too."
Through 101 games, Konerko is hitting .316 with 18 home runs and 54 RBIs. He ranks sixth in the American League in on-base percentage at .388 and is tied for sixth in average. Konerko missed two games in May after being hit in the face by a Jeff Samardzija pitch and missed three games in June after having a bone chip flushed in his left wrist.
"Paul's a great friend of mine. I've been here eight years with him now," catcher A.J. Pierzynski said. "You never want to see anybody get hurt, but especially up in the head with a concussion or that kind of stuff. It's usually bad news. Hopefully, he gets well soon and gets back in a week."
The move marks the first time the White Sox have used the seven-day disabled list specifically designated for concussions and head injuries.
Scott Merkin is a reporter for MLB.com. Read his blog, Merk's Works, and follow him on Twitter @scottmerkin. This story was not subject to the approval of Major League Baseball or its clubs.