BERKELEY, Calif. (AP) -Center Alex Mack will return for his senior season at California after being chosen the Pac-10's top offensive lineman this past season.

Mack was a unanimous all-conference selection and a finalist for the Rimington Trophy as a junior with the Golden Bears (7-6). He anchored a line that allowed just 11 sacks, and the conference's defensive linemen chose him for the Morris Trophy as the Pac-10's best offensive lineman.

``There is a lot I can do at Cal to improve my game and to further my career,'' Mack said Tuesday. ``I didn't want to miss the experience of my senior season and helping the team get back on track and finish things right. This also gives me an opportunity to finish my degree and continue my education.''

Mack expects to complete his degree in legal studies in May.

Cal receiver DeSean Jackson hasn't announced whether he'll return for his senior season. The punt return specialist was a third-team All-American as an all-purpose player. Jackson is expected to leave Cal, but could be reconsidering his decision after injuries and inconsistent play dampened his junior year.

The Bears lost six of their final eight games after a 5-0 start and a No. 2 national ranking.