Sevilla used to be a strong club in La Liga, but I don't know what went wrong for them. They even find it hard to dominate their favorite competition, which is the European League competition. On paper, Sevilla is the favorite to win against Celta Vigo, but their inconsistency this season made them not win against Celta Vigo, even though Celta Vigo is also struggling this season in the league.
since last season, Sevilla has lost its golden era and has seen a serious decline in performance, usually finishing in the top 10, but last season it finished in 12th place and this season, Sevilla is getting worse.
looking at several facts, there are actually no big problems currently being experienced by Sevilla, but in my opinion, this is only about the possibility that Sevilla management has failed to manage the team well and on the one hand, we also have to question the new coach, Quique Sanchez, who is currently given the responsibility to be able to gave changes to Sevilla but the results got worse and even against a weak team like Celta failing to get a score or at least being able to hold a draw was already a good result but Sevilla actually got a defeat which made this team's reputation very bad.
many people are worried about Sevilla current position. If they continue to perform like this, they could be in danger of entering the relegation zone, whereas as you said, Sevilla is one of the popular teams in the past that is having to experience difficult times now without any improvement.
since Sevilla experienced this downturn I have always avoided betting on any Sevilla matches which are very risky.