Seahawks' Fred Jackson involved in car crash near practice facility

Seattle Seahawks running back Fred Jackson crashed his sports car near the team's facility following practice Tuesday.

Jackson drove his black Corvette into a large planter box and a stop sign, then dragged the sign across a two-lane road. Although his car "sustained moderate front-end damage," according to Renton, Wash., police, a team source told ESPN.com that Jackson was not injured.

It had been reported earlier by TMZ that Jackson was engaged in a street race with fellow Seahawks running back Marshawn Lynch, but Renton police said that was not the case.

"As of this time, there is no indication that Jackson was racing another vehicle," Renton police said in a statement. "He remained on scene until officers could speak to him. He was polite and cooperative."

Jackson also took to Twitter to deny reports of street racing.

Lynch drove away unharmed, according to TMZ.

The Seahawks (2-4) take on their NFC West rivals, the San Francisco 49ers (2-4), on Thursday.

Jackson signed with Seattle right before the start of the regular season after being a surprise cut by the Buffalo Bills. The move to Seattle reunited Jackson with Lynch, a teammate with the Bills.

Jackson has been used sparingly and mostly as a third-down running back with the Seahawks. He suffered a high-ankle sprain in a Monday night game against Detroit but played six days later against Cincinnati.

Jackson has 10 carries for 52 yards and 12 catches for 110 yards and a touchdown in Seattle's first six games.

Information from ESPN.com Seahawks reporter Sheil Kapadia and The Associated Press contributed to this report.