They say you only get one chance to make a first impression, and David Martinez ’s was just what the doctor ordered at UFC on ESPN 64 . Martinez (12-1 MMA, 1-0 UFC) turned out the lights on Saimon Oliveira (18-6 MMA, 0-3 UFC) in the first round of his UFC debut in front of his home Mexico fans – and in front of his sister in his corner, fellow UFC fighter Melissa Martinez. Martinez and his sister both are doctors, as well. Martinez drilled Oliveira with a combination late in the first round of their bantamweight bout, then put the pressure on as he stumbled backward.