UFC 203 results: Yancy Medeiros finishes Sean Spencer in second round

Late in the first round of his welterweight matchup against Sean Spencer on Saturday, Yancy Medeiros rocked Sean Spencer with a head kick.
Spencer survived that attack, but it simply turned out to be a preview of things to come.
Early in the second, Medeiros dropped Spencer with another head kick, pounced, and soon thereafter earned the submission victory. The opening matchup of UFC 203 was waved off at the 29-second mark and Medeiros became the winner via rear-naked choke of the first UFC bout