Barcelona's pressure will test Atlético's first pass, and Atlético have a direct escape once that pressure is beaten. The match can move between long spells of Barcelona attacks and sudden home runs into space. The deciding phase should be the next clean box contact after the first response.
Yamal, Raphinha, Fermín and Pedri give Barcelona several receivers when a first attack is cleared. Atlético needed Oblak saves despite allowing useful chances in recent league wins, and Bayern's pressure broke their first exit. Rodri is confirmed out, but Bernal and De Jong both played Villa, while Eric García and Christensen are back as squad options. Barcelona can keep supplying the next attack after parity, so I'm siding with Barcelona to take the result.