AUBURN HILLS - Reggie Jackson's status for the Detroit Pistons preseason opener is uncertain after the veteran point guard left practice early Tuesday with a sore right adductor.

Jackson battled knee tendinitis for most of last season but coach Stan Van Gundy said it wasn't a knee issue that cut Jackson's workout short Tuesday at The Palace.

Van Gundy originally thought it was a groin problem but a Pistons spokesman said later that it was the right adductor that tightened up on Jackson, who was limited to 52 games last season by knee issues and was inactive for the final nine with the playoffs out of reach.

"He pulled out maybe the last 15 minutes, 20 minutes," Van Gundy said. "But he did most of it. They were icing him down."

According to emedicinehealth.com, the adductor is "any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together."

Van Gundy has been careful with his handling of Jackson during training camp and so far the six-year veteran hasn't reported any problems with his knee.

The Pistons open the preseason Wednesday night against the Charlotte Hornets at Little Caesars Arena.

"I just want to see him and make sure he's ready to go," Van Gundy said. "We'll see how he is tomorrow, whether or not he's going to go tomorrow night. Our original plan going into today was to play him about 12 minutes in the first half and then make an evaluation at halftime going into the second half.

"But now I don't know if the (adductor) is going to complicate that."

Van Gundy said the Pistons had no other injuries with a meet the team event scheduled for tonight at LCA and a morning shoot around scheduled for Wednesday at The Palace before they face the Hornets.

The Pistons open the regular season Oct. 18 at LCA, also against Charlotte.