A prelude to reaching the finals? For the first time since the 2005-06 season, Arsenal won all four of their first 4 games in the Champions League

In the fourth round of the UEFA Champions League, Arsenal defeated Slavia Prague 3-0 away from home.
In the Champions League this season, Arsenal won all four of their opening games. This was the first time the Gunners had achieved such an achievement since the 2005-06 season, and that season they finally reached the final.