Vincent Jackson is difficult to get close to on or off the football field.

The 30-year-old wide receiver of the Tampa Bay Buccaneers held one of his rare media sessions Thursday typically downplaying his own accomplishments in an offense that ranked No. 9 in the league last season the best showing in franchise history.

In talking to Jackson’s teammates and coaches a portrait emerges of a dedicated and talented player who approaches his job with a keen intellect.

Jackson who joined the Bucs as a free agent in 2012 after seven seasons in San Diego doesn’t brag about the four languages he speaks or the 4.1 grade-point average he accumulated at Widfield High in Colorado Springs Colo.

“There’s always more room to grow’’ said Jackson who set career marks for receptions (72) and receiving yards (1384) in his first season with Tampa Bay. “I have a lot of football left in me and I feel great. I think this offense allows me to be successful and for me it’s just about contributing. It’s not about statistics for me ... and never has been.’’

By the sheer numbers Jackson ranks as the No. 1 big-play threat in the league.

The three-time Pro Bowler led the NFL by averaging 19.2 yards per catch last season and his career average of 17.8 is tops among all active players with at least 250 receptions.

“I keep telling everybody he’s the best receiver in the NFL’’ said teammate Mike Williams who came within four yards of giving Josh Freeman a pair of 1000-yard targets in 2012. “It’s not because I’m biased or because Vincent is on my team ... the guy can do it all.’’

Although Jackson topped the 1000-yard mark three times within a four-year span the Chargers allowed him to hit free agency and the Bucs pounced on March 13 2012 signing him to a five-year deal that included $26 million in guaranteed money.