Justin Upton doesn't believe his new $51.25 million contract will add any more pressure than he puts on himself already. "I want to be great," he said at a news conference Wednesday to announce his new deal, the second-largest in franchise history. "If you want to be great, then you set your goals higher. That's what I do to myself. Sometimes I go too far and beat myself up over it, but it's something that I think I can handle. It's what I strive for. I'll continue to work towards that." "Our motivation behind the deal is simple," Diamondbacks General Manager Josh Byrnes said. "When we have a core of players we feel we can build around, we want them here as long as they can possibly be here. He fits that model." Upton's deal ranks behind only the four-year, $52.4 million deal the club gave Randy Johnson in November 1998.