Girona lost their first home leg 3-1, with Rayo clearly ahead. Girona had a poor start to La Liga. After a fantastic season two years ago, they've become an average team.
Rayo Vallecano is a team that often surprises the big teams in La Liga, so their victory over Girona was actually quite understandable. On the one hand, Girona isn't exactly a remarkable team, and we saw that last season. Rayo have had a very good start to the season, and I hope they can be a top-four contender this season so Rayo Vallecano can play in the Champions League next season. As for Girona, I just hope they don't get relegated this season so they can still play in La Liga next season.
Rayo made a strong start to their debut, beating Girona was no easy feat. I think Rayo has improved slightly this season and could possibly spring a surprise in the top five this season. However, it's probably too early to predict. We'll have to see Rayo's progress over the next few weeks. If the club performs consistently, it's not impossible that they'll provide stiff competition.
And for the Villarreal vs. Real Oviedo match, as many have predicted, Villarreal are favored to win against the newly promoted team.