Expect Callahan to set his side up in that familiar 4-4-2, with Surridge and Saad leading the line. It's a shape that gives them two banks of four, hard to break down, and they'll look to hit Miami on the break through the wide areas. Espinoza and Muyl will be asked to track back and then spring forward, while the double pivot of Tagseth and Corcoran will try to screen the back line. It's not pretty, but it's effective. They'll sit deep, invite pressure, and look to nick something on the counter or from a set-piece.

Miami, under their usual 4-3-3, will dominate the ball. Ríos Novo in goal, with a back four of Mura, Caicedo, Micael and Allen. The midfield trio of De Paul, Casemiro and Bright is a proper engine room, and they'll look to feed the front three of Pinter, Suárez and Silvetti. With Messi pulling the strings from deep, they have the quality to knife through any block. But that leaves space in behind, and Nashville will be licking their lips at the thought of runners in the half-spaces.

The key battle will be in midfield. Casemiro and De Paul are world-class operators, but they can be bypassed if Nashville press aggressively and force turnovers. Callahan's men are second-ball merchants, and if they can win those duels in the middle of the park, they can starve Miami of service. Set-pieces will be huge too. Nashville are big and physical, and they'll fancy their chances against a Miami side that can be vulnerable from dead balls.