Union's press should challenge Celta's first pass and the recovery of second balls. Celta have a wingback outlet that can escape pressure and turn one clean pass into a chance. The match may hinge on which side makes a second accurate attempt after the first exchange.
Union sustained deliveries against Real Sociedad and found direct runs away at Plzen. Celta's recent attacks have reached the area often but have less consistently tested the goalkeeper, even as Álvarez and the wingbacks offer a real reply. Celta's official squad still lacks Starfelt and Borja Iglesias, who also missed the last match; González is in the squad but his coach said he cannot start. Union's coach confirmed Mac Allister, Biondic and Kricfalusi unavailable, while Mofokeng and Florucz played the last match and Patris, Zeneli and Sylla preserve the delivery route. Union's repeat pressure gives them the better route to the regular-time winner, so I'm siding with Royale Union SG.