David Raya blamed for Porto’s winning goal against Arsenal by Michael Owen

Michael Owen believes goalkeeper was at fault for the concession of the goal that leaves the Gunners with an uphill battle to qualify for the quarter finals.

means Porto will travel to north London in three weeks’ time with a slender advantage.

There appeared little danger to the Arsenal goal when Gabriel Martinelli received possession midway inside his own half, but the winger’s over ambitious pass proved to be a costly error.

A Porto breakaway saw Galeno presented with a shooting opportunity from distance and although his curling strike was accurate, it appeared to lave the venom required to beat a top class goalkeeper from 25 yards out, a view shared by former England striker Owen.

He told TNT Sport: ‘When you watch it and the ball goes in and you think it didn’t quite look right you think is the keeper at fault.

‘I’m not sure whether taking a step back would’ve helped I think shuffling your feet across. Because the ball went in so slowly you’ve got time to take one or two strides and then dive.

‘If you look at the goal it starts curling and literally from where he plants his feet he then dives and he can’t get to it.

‘I think he’s got time with the slow floating ball to take one or two steps to the side and then jump.

‘I wouldn’t look at it and say it’s a big, big mistake but you do think could he have done better.’

The Spain international was, himself, questioned over his role in the goal after the game and said: ‘It was a few things before that, I think we should’ve managed a little bit more in that stage of the game, we were 0-0 away from home, we should’ve kept the calmness a little bit more.

‘But it’s a good finish, it’s a good finish from outside the box, that’s what happens in football.’

Despite the defeat, Raya was buoyed by Arsenal’s defensive display against Porto.

He added: ‘I think we played a really good game, especially defensively, they didn’t create much, they had a few counter-attacks but we defended very well.

‘It’s like I said, we should’ve managed a little bit more the last minutes of the game.
‘But it’s half time, we’ve got a game at the Emirates with our fans, and we’re going to go there, try to win the game and go through.

‘We are confident, we know what we’re capable of, we know we have a better level to play, especially at home with our fans, we’re going to meet them there and try to win the game.’