He isn't the Most Valuable Player of the Dolphins, not with Chad Pennington's body of work. Nor is Roth the hot name on the defense, not with Joey Porter's 17 ½ sacks. But every winning team has its share of comeback stories and no one has come back further than Roth, who came back from oblivion. His career was nowhere entering this year. He was, like a lot of guys in a new regime, capable of getting lost. And now he's singled out every game by coach Tony Sparano for, "wearing out the other tight end." Roth a key factor in surprising turnabout -- South Florida Sun-Sentinel.com