Arteta unhappy with Arsenal's lack of aggression

Mikel Arteta bemoaned a lack of aggression from his Arsenal side in the Champions League defeat at Porto but said it would be "cruel" to judge their return to the knockout stages on the last-gasp goal that settled the contest.

The Gunners' hopes of reaching the quarter-finals for the first time in 14 years suffered a blow as Galeno’s fine late strike saw Porto win 1-0 in the last 16 first-leg tie.

With the second leg at the Emirates Stadium on March 12, Arteta now knows his side must win on home soil to reach the business end of the Champions League on their long-awaited return.

Arsenal, more than anyone, know there are no easy games at this stage of Europe’s elite club competition – having fallen at this hurdle seven years in a row under Arsene Wenger.

This is their first time back at this level since the last of those in 2017 and it proved much more challenging than the recent Premier League thrashings of West Ham and Burnley for a team inexperienced on these occasions – Kai Havertz the only player from the starting XI with any previous appearances in the Champions League knockout phases.

The vistiors failing to register a shot on target on a tough night at the Estadio do Dragao with Porto more than a match for the Gunners, frustrating the visitors for much of the evening and ultimately capitalising on some lapse defending to secure a late victory.

"Obviously I am very disappointed the way we gave the game away at the end," Arteta said.

"Not managing that situation well enough. You get punished in the Champions League. If you cannot win it, you don’t lose it.

"We really dominated the game but we lacked purpose, especially in the first half. You need to have much more aggression, you need to break lines, to play forward and