article_snippet.sent: Colombian striker Martinez rounds Neuer with ease before slotting into an empty net and putting Porto 3-1 ahead .
article_snippet.sent: Martinez celebrates putting Porto into a commanding 3-1 lead as Bayern Munich have a night to forget in Portugal .
article_snippet.sent: Martinez celebrates Martinez goal in front of the Porto faithful as Xabi Alonso and Neuer look shell-shocked .
highlights_snippet.sent: Colombian forward Martinez puts Porto into commanding 3-1 lead midway through second half .