The Primeira Liga side travelled to face Athletic Bilbao at San Mames and, with Shakhtar Donetsk thrashing BATE 5-0 in Group H's other clash, a 2-0 win in Spain guaranteed Porto a spot in the next round.
After missing a first-half penalty, the impressive Martinez opened the scoring in the 56th minute, bundling home after fine wing play from Yacine Brahimi, who also produced a lively display.
"We've made a great performance in defence and in attack," the Colombian began.
"We are happy with what we did tonight. The penalty I missed does not matter; what matters is that we ended up winning the match.
"We have been training well, we have evolved a lot since the beginning of the season and, with the talent we have, we want to fight to reach the final of the UEFA Champions League."
