Bizzare is your claim he's "not been great" in his first start in ages in a season ruined by injury. Playing against one of the best teams in the world.
Where as the general view from fans and media is he was arsenals best out field performer. Which again If you consider his lack of game time this season. Which exceeds everyone else on the pitch. His performance was remarkable.
Trying to pick holes in this given the above facts, it's obvious you have a personal dislike for him.
As a scotland fan im delighted he started and played ok. And even seen the whole game out.
Now your saying he is a "brilliant" footballer, so I appreciate that you have now completely capitulated.
Wether he is or isnt better than Robertson is not something i particularly care about. Just glad another good footballer is playing again and will be a good opinion for Scotland.