I think his fitness level makes it a fair concern. Once he's over the hill and declining, he could go from great to worthless in a much shorter time frame than most other elite sluggers would. At the end of the '96 season, Cecil Fielder turned 33. He played in 160 games that year, hit 39 HR, and OPS'd .834. By the time he was 35, he was done with baseball. (Granted, I don't know anything about any injuries.) I'm not saying that Prince is condemned to the same progression at the same age, but I think he'll see a similar rate of decline whenever that decline starts. 2-3 more great years for Prince is almost a guarantee. Another 2 to 3 is definitely very possible, but not necessarily a given, and anything past that is anyone's guess. Signing someone like Fielder to a 6-year-deal is nowhere near being in the same ballpark as Soriano's contract unless he just completely breaks down very early into his career. Hell, even an 8-year-contract wouldn't be the end of the world given the projected level of production and that he'd still be 36 at the end of it, though I really don't think he's going to get that many years. 6 years is probably what he'll end up with at the most, largely due to his weight, and the Cubs would be foolish to not go all in since they opted not to sign Dunn and if Pujols isn't available. Opting not to sign him to such a deal because he's fat and might suck for the last year when they have zilch on the horizon when it comes to someone manning 1B would be just yet another example of poor front office management by the Cubs. Come on, him playing excellent baseball between ages 28-30 is only "very possible?" I said 28-30 was a guarantee. From there, the probability starts to decline from 100%, making the next few years after that still "very possible." I would be on board with a 6-yr deal. In an 8-yr deal, those last two years could very well serve only as gifts to Fielder for the level of production he'd give for the first 4 to 6.