Arsenal was really unlucky because was one of the key and effective players in this team and this performance in Arsenal was good but in the last pictures we see of Martin Ødegaard, he couldn't even walk himself and this shows he is going to be out for a long time. This player was injured while playing for Norway in the game against Austria and he couldn't concubine the game in the 67 minutes of the match.
Arsenal should think about filling his place in the game in both the Champions League and the Premier League during this season.
There is no choice but for Arteta to persist in setting up a strategy without these key players. I think Arteta must do this to maintain his position in the EPL standings, or else other teams will take advantage of Arsenal current condition of losing several key players.
I see Arsenal current odds @2.26 which was initially less than @2 but after it was confirmed that the key player was injured the odds increased. While Spurs currently have odds @3.1 and that means bookies also doubt that Arsenal can beat Spurs in conditions like this.
Getting 1 point from a draw is possible but Arteta must be careful with Spurs attacking players.