Stefen Wisniewski visiting the Seahawks on Thursday

The Seattle Seahawks have a chance to sign one of the top free-agent centers on the market in Stefen Wisniewski, who is in Seattle on Thursday to talk to Seahawks officials.

Mike Garafolo of Fox Sports first reported the news that Wisniewski was visiting with the Seahawks.

Wisniewski (6-foot-3, 315 pounds) was a second-round draft pick out of Penn State by the Oakland Raiders in 2011. He was a four-year starter at center and left guard, the two spots where the Seahawks have needs.

Starting center Max Unger was sent to the New Orleans Saints in the tradeon Tuesday to acquire tight end Jimmy Graham. Starting left guard James Carpenter signed with New York Jets.

But the Seahawks likely are looking at Wisniewski to come in and replace Unger at center.

Wisniewski uncle, Steve Wisniewski, played 13 seasons for the Raiders (1989-2011) and was an eight-time Pro Bowl selection as a guard. Stefen’s father, Leo, played four seasons for the Cleveland Browns as a nose tackle.

Wisniewski reportedly visited the Tampa Bay Buccaneers on Wednesday. He is believed to be seeking a deal with would pay him in excess of $3 million per season.