is one piece episode 825 filler?

Before Sanji found Luffy, it is recounted how Bobbin attempted to steal the food from his bento box, causing him to kick Bobbin and run away. As Sanji headed to the outskirts of Sweet City, Luffy fought against Charlotte Counter.

Counter initially managed to easily overpower Luffy, but Luffy eventually managed to find the strength and resolve to stand up and counter Counter's strikes. The two traded punches, and Luffy ultimately collapsed, but was able to deal enough blows to Counter's head to make him fall unconscious before he could deal the finishing blow.