David Raya saved two penalties as Arsenal beat Porto 4-2 in a shoot-out to reach their first Champions League quarter-final in 14 years.Leandro Trossard's first-half strike cancelled out a first-leg deficit but Mikel Arteta’s side then struggled to create chances to win the game as the tie finished 1-1 on aggregate.All four of Arsenal’s penalty takers were faultless as Raya kept out spot-kicks from Wendell and Galeno to take the Premier League leaders past the last-16 stage for the first time since 2010.As a player, Arteta suffered four straight defeats in this round of the competition but – having ended Arsenal’s seven-year Champions League exile – he has now guided his side into the final eight. FULL MATCH DETAILS They could yet face rivals Manchester City, with the draw made on Friday, but for now they will be happy to have banished painful memories of defeats at this stage down the years – with seven consecutive exits in this round under Arsene Wenger.This was also the first time Arteta’s Arsenal have won a knockout game at the Emirates Stadium, edging past Porto in what threatened at times to spill over into an ill-tempered affair – with the Arsenal boss and Sergio Conceicao, his counterpart, both cautioned.Ben White looped a header onto the roof of the net as Arsenal set out their stall early on, with a tame Bukayo Saka strike spilt by Diogo Costa.At the other end, a wayward headed clearance from William Saliba allowed Evanilson to shoot just wide to give the home fans their first fright of the evening.Raya was called into action soon after to push away another Evanilson effort as Porto started to show how they could impact the game on the counter-attack.Arsenal, though, were patient and steady in their build-up