Again, getting hit as much as he did zaps your gas tank.
Saying "Too bad a guy gassed" implies he just wasn't in good enough shape. In this case, most guys slow WAY down when getting tagged that much regardless of how good of shape they are in. When Fergesen was throwing his jab he was landing it clean, at will, and HARD. That is gonna slow a guy down.
And when was he gonna slow the pace? Other than the 45 seconds he had Ferg really hurt, it was Ferg pushing forward and pushing the pace the entire fight. If a guy is constantly coming at you like that, you don't have much choice other than to engage. And to Vanetta's credit, he damn near stopped a guy who seems impossible to stop.