Updated

The Oakland Raiders signed kicker Sebastian Janikowski to a four-year extension Friday, ensuring the franchise's leading scorer will remain with the team through at least 2017.

Janikowski is coming off the best season of his career. He converted a career-best 91.2 percent (31 of 34) of his field goal attempts in 2012. The only misses came from 51, 61 and 64 yards.

The 35-year-old kicker needs only 10 field goals of 50 yards or longer to break Jason Hanson's NFL record. Janikowski already owns multiple league records, including a share of the mark for the longest field goal made.

The move was slightly surprising after Oakland opted not to re-sign perennial Pro Bowl punter Shane Lechler in the offseason, breaking up one of the top kicking tandems in the NFL.