If it seems as though Mark Sanchez is handling the constant comparisons to fellow top QB prospect Matthew Stafford in stride, that’s because the former USC signal-caller knows a thing or two about competition.

After all, he starred for a school that in the last 6 years has produced four NFL quarterbacks – Carson Palmer (’03), Matt Cassel (’05), Matt Leinart (’06) and John David Booty (’08). Now, Sanchez stands poised to become the fifth.

Competition was so stiff at quarterback for USC that Sanchez didn’t even become a full-time starter until this past season. But he made the most of it, shredding defenses to the tune of 3,207 yards and 34 touchdowns while leading Southern Cal to a 12-1 record. He capped off his season by leading the Trojans to a 38-24 Rose Bowl victory over Penn State in which he completed 80 percent of his passes for 413 yards, four touchdowns and no interceptions, while also rushing for a score.

Despite his stellar season and even better bowl game performance, some question Sanchez’s NFL value because of his relatively limited time under center in college.

Count USC Head Coach Pete Carroll among his doubters. During a press conference in which Sanchez announced his intention to declare for the NFL Draft, Carroll said he disagreed with his quarterback’s choice, citing numerous cases and statistical data that suggest quarterbacks who leave school early struggle in the NFL.

His coach’s lack of confidence aside, Sanchez certainly has the physical tools of an NFL quarterback. The 6’3″, 225-pound signal caller possesses a quick release, displays solid arm strength, above average athleticism and great field vision. He’s also known to be something of a gym rat – a quality that will certainly come in handy as he tries to break the mold of quarterbacks that entered the NFL draft early. It’s also important to note that Sanchez is a fourth-year junior, and will walk away from USC this year with his degree.

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The Oklahoma Sooners will have the quarterback the led them to the national championship back under center next year as Sam Bradford has decided not to enter April’s NFL draft.

The USC Trojans, however, might not be as fortunate. Word has it that quarterback Mark Sanchez will forgo his senior season and turn pro next year.

USC quarterback Mark Sanchez has said that he would monitor the decisions of other top draft-eligible quarterbacks as he pondered whether to return to USC for his final season of eligibility or make himself available for the NFL draft.

Thursday is the deadline to declare for the April draft.

Bradford, the 2008 Heisman Trophy winner, is the third high-profile quarterback to announce he was staying in school, possibly increasing the chances that Sanchez will opt to turn pro.

Texas’ Colt McCoy said during he season that he would back. Florida’s Tim Tebow and Bradford have since said they would remain in school.

It would be hard to pass up that much money, but I think it’s Sanchez’s case, he would benefit from another year at USC. The Trojans’ offense didn’t hit their stride until late in the season and at times, Sanchez was highly inconsistent. Of course if he does leave, he’s doing so on a high note because his Rose Bowl performance was the best of the year. It’ll be interesting to see not only if he decides to come out, but what round he’ll be selected in.

As for Bradford, his decision to stay at Oklahoma was clearly a calculated risk. He figures that if Matthew Stafford of Georgia comes out, there’s a good chance that the Lions will take him with their No. 1 pick and Sam will bypass the mess that is Detroit. Well played, Sam – well played.