diego hasn't submitted anyone off his back...in a long long time....
Yeah, but its not like he fought people easy to submit...
Florian has never been submitted
Gassaway just got overwhelmed
Diaz has never been submitted
Alessio, stupid ref let them walk around piggy backing the whole time
Riggs got KO'd quickly
Koscheck wasn't even a fight
Fitch is well, Fitch, he's been subbed once and that was his first fight
Bielkheden was overwhelmed also
Fioravanti just did a good job at keeping the fight on the feet.
Anyways what I'm trying to say is, Diego has tremendous skills on the ground, but he hasn't been able to show that in awhile because the competition he has faced has been pretty good and the people you would have expected him to sub was the people he TKO'd