Vick didn't garuntee a superbowl. He said it's all about the superbowl.
On the other hand.... Ryan Kalil

The sixth-year center bought a full-page ad in the Charlotte Observer on Wednesday, telling Panthers fans their "unwavering support" would be rewarded this year.
And Kalil has a goal in mind how fans would reap the benefits with what he said is "One hundred-percent, sterling silver victory. The Lombardi Trophy."
The 178-word open letter, called "a war cry to fans," had one emphatic statement:CAROLINA PANTHERS -- SUPER BOWL XLVII CHAMPIONS!