We don't have confirmed lineups or formations from the brief — the data is thin. But we can paint the picture from what we know. Sevilla, under their usual setup, will likely line up in a 4-3-3 or a 4-2-3-1, looking to dominate possession and use the width of the Sánchez Pizjuán pitch. They'll press high, force Rayo into mistakes, and look to knife through the lines with quick, vertical passes. Rayo, by contrast, are expected to sit in a low block, maybe a 4-4-2 or a 5-4-1, and try to hit on the counter. They're second-ball merchants, physical and direct, but that style is far less effective when you're chasing the game away from home.

The midfield battle will be key. Sevilla's double pivot should control the tempo, while Rayo's midfield will be asked to dogfight and disrupt. If Sevilla can get their full-backs high and stretch the pitch, Rayo's narrow shape will crack. Set pieces could be a factor too — Sevilla have the height and the delivery to punish a deep-lying defence. Expect Sevilla to have 60%+ possession and to create the clearer chances. Rayo will have their moments on the break, but they'll be sporadic, not sustained.