The Gunners incurred a 2-1 loss at the hands of Man City even after putting an elite performance against the league leaders.
Rodri scored a goal in injury time to seal the win for the away side.
Mikel Arteta’s side dominated the game in the first half and Ramsdale believes Arsenal can compete with the best this season.
“(There are) a huge amount of positives,” he told the club’s official website.
“Not too many teams have dominated Man City like that more in the first half than we did it.
“We played really well in the second half and we need to try and get over the line in one of these big games, but at the start of the season when it’s 4-0, 5-0, Liverpool, City, this is a massive step in the right direction.
“We need to win one of these games, but ultimately we know we’re not challenging with these guys at the moment, but on this basis, if we can put that in week in, week out, we can be.”
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