ESPN's Chris Mortensen reports the Seattle Seahawks have agreed to terms with first-round offensive tackle Russell Okung.

According to Mortensen, the six-year deal has a maximum value of $58 million, with $30 million guaranteed. Okung is expected to be signed in time to participate in the Seahawks' practices this weekend.

A four-year starter at Oklahoma State, Okung started at left tackle over the last three seasons in Stillwater. Okung twice earned first-team All-Big 12 honors, and was named that conference’s Offensive Lineman of the Year.

Okung looked impressive at the 2010 Scouting Combine, measuring in at 6-5 and 307 pounds, with 36” arms that helped put up 38 reps in the 225-pound bench press.

Blessed with prototypical left tackle size, strength, and athleticism, Okung will start at left tackle immediately for the Seahawks, who chose Okung to be the long-term replacement for future Hall of Famer Walter Jones.

Okung is the last of the 2010 first-round picks to agree to terms on a contract.