LONDON (Reuters) - Arsenal survived a penalty shootout to scrape past Porto and reach the quarter-finals of the Champions League for the first time in 14 years after a tense last-16 duel had ended 1-1 on aggregate on Tuesday.

The hosts coolly converted their first four penalties with Porto's Wendell hitting the post before David Raya saved Galeno's effort to send Arsenal through 4-2 in the shootout after the match finished 1-0 to the London club after extra time.