Because I remember their last match against each other also. Sevilla played really dominant statistically but they barely won by 1-0 anyway. Rakitic's penalty goal in the last minutes saved them. Now they are the away team and I don't know if they can get a similar result at worst. They both have the same points in the league now and the same goal also. They both are targeting to stay in the La Liga. Sevilla have the Europa League to focus on more of course. But this shouldn't cause them to let the La Liga go. I would like to see them defeating Cadiz here.
A draw is still a big possibility, it's just that if either one does win I think it will only be a narrow win.