Twins third baseman Trevor Plouffe remained with the team and was scheduled to undergo a full-impact test before Thursday's game at Comerica Park.

Plouffe, placed Wednesday on the seven-day concussion disabled list, was admittedly groggy after taking a Dan Uggla knee to the back of the head on a takeout slide late in Tuesday's game in Atlanta.

He said he "felt a lot better" Thursday, even after taking a two-hour flight north on the team charter.

"No headaches or anything," he said. "I pretty much feel normal. As far as any timelines, it's still one step at a time."

Thursday's test, which was expected to take more than 30 minutes, was designed to let Plouffe know whether he actually suffered a concussion. He said this week he previously had suffered a "minor concussion" while playing for Triple-A Rochester in recent years.

Plouffe, who had started at third base in 37 of the Twins' first 42 games, ranks third among Twins regulars with a .425 slugging percentage.