USC QB Matt Barkley announced Thursday that he will return for his senior season. In a press conference, Barkley said he has "unfinished business" at USC.

Barkley threw 39 touchdowns and seven interceptions and completed 69.1 percent of his passes this season for the 10-2 Trojans. USC is not eligible for a bowl this season, but will be able to play in a bowl game next year.

USC's top offensive tackle, Matt Kalil, declared for the draft last week. Kalil is expected to be a top-five pick.

Barkley was also expected to go in the top five and be one of the top three quarterbacks taken after expected No. 1 pick Andrew Luck.

Junior QBs Robert Griffin III, Landry Jones and Luck have not officially declared for the draft.

The way we see it

Barkley's decision to stay in school was not a surprise. He would like to play for a national championship and he could be the No. 1 pick in 2013. For the NFL teams in need of a quarterback, this is one less top QB that will be available in April. It also boosts the values of Griffn, Jones and QBs Ryan Tannehill and Brandon Weeden.