The White Sox slugger sustained the concussion when Jarrod Dyson's left elbow connected with Konerko's right temple as Dyson ran through first base while beating out an infield grounder to second baseman Gordon Beckham. Although Konerko appeared dazed after contact, he remained in the game after being checked by manager Robin Ventura and head athletic trainer Herm Schneider.
Ventura announced the concussion following Wednesday's game, after discussing the captain's general soreness and just a need for a break in the pregame media session. Konerko gets Thursday's scheduled day off and then will be re-evaluated before the series opener with Oakland on Friday.
"He didn't sleep very well last night," Ventura said of Konerko. "Coming in today, he didn't look too good."
"Hopefully it's just today, but the good news is we have an off day [Thursday]," White Sox first baseman Adam Dunn said. "Giving two days to anybody is beneficial so hopefully it's not too serious."
As Ventura pointed out in his postgame press conference, Major League Baseball now provides the seven-day disabled list designed specifically for concussions. Ventura didn't know if Konerko's situation stood at the disabled list point, but the White Sox absolutely will err on the side of caution.
"There have been some serious things with concussions. He's got to be evaluated," said Ventura of Konerko, who watched Wednesday's game from the clubhouse. "He does have a mild one, so it was more of a precaution to keep him out. No way could he have played tonight. Just better to keep him out of it."
"It stinks for Paulie," catcher A.J. Pierzynski said. "As soon as it gets in the head area you don't want to mess with it. Hopefully he'll come in Friday, say he's feeling better and will be ready to go."
Pierzynski appreciates Major League Baseball making the care of concussions such a priority.
"Yeah, absolutely," Pierzynski said. "Guys need to get better especially with stuff around the head. It's a bad break but nobody is going to feel sorry for us. We just need him to get better and get back as soon as he can."