Paul Konerkos concussion has improved but he was still placed on the seven-day disabled list before Fridays game.
Konerko missed Wednesdays game and was re-evaluated again before Fridays series opener against the Oakland As.
Konerko -- who was unavailable for comment -- was hit in the right temple by an inadvertent elbow in the seventh inning of Tuesdays game against the Kansas City Royals.
He seems fine, Ventura said. But again, in talking to him and him having to go play is two different things. 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.
Konerko is hitting .316 with 18 homers and 54 RBIs in 101 games. He is not eligible to return to the lineup until next Friday in Kansas City, Ventura and assistant general manager Rick Hahn said.
But Konerko will have to thoroughly prove his concussion is gone to a team physician in order to return.
According to an ESPN.com article, the physician must prove to Major League Baseball that all concussion symptoms have cleared while the player is at rest and while he performs baseball-related activities.
The club physician must also feel its safe for Konerko to play and then the league has to clear a return to action.
Even if Konerko hadnt been placed on the seven-day DL, the team still would have had to submit a form to prove any and all concussion-symptoms had disappeared.
They put him through a series of tests to make sure, Ventura said. It's not easy to get on or off this list. It's more out of our hands, too.
MLB created the DL for concussion-symptoms in the spring of 2011 and made it available to teams at the beginning of last season.