Well, I actually think that Sevilla is still not clear about the danger. they can still fall down in the fifth position in the leg because Real Betis is right behind them with only three points difference. and we have to remember that there is absolutely no goal difference between them and Sevilla. so if Sevilla loses in the last match and Real Betis ends up winning, Real Betis will be the team that plays in the Champions League.
Sevilla performance currently have been experiencing bad performance, they only could have drawn match results in sequences. Their performance is decreased from time to time. They seem to have no big motivation and effort to win every match.
Whereas, their position in the fourth standing is actually threatened.
However, this will depend on how the result of the last match. Still unpredictable, moreover Real Betis will play vs Real Madrid, and Sevilla is vs Athletic Club. Sevilla should have higher chance to be in the fourth position if seeing the matches. But once more,sometimes, football brings something surprising
Sevilla decline in performance occurred at the right time, there is no longer a threat for Sevilla in fourth position because Sevilla has one ticket to the Champions League. The results obtained by Sevilla and Real Betis will not change the list of standings in fourth place. Even though Sevilla lost to Athletic Bilbao and Real Betis won over Real Madrid, will not make Sevilla position threatened even though both clubs collect the same number of points, because Sevilla won head-to-head over Real Betis.