Fukuoka's first press should make Gamba work for clean possession. Gamba have several ways to move beyond it, from a midfield second ball to a pass behind an advanced wing-back. The later phases may matter as much as the opening push. Both sides have shown they can change the attack from the bench.
Fukuoka can press Gamba's first pass and serve Morooka from wide positions. Popo left the latest match injured at halftime, and the ensuing crosses lacked a firm first contact. Gamba can use Abe or Mito to gather the next ball, then connect Adams, Usami or Jebali with runners attacking the space behind Fukuoka's wide defenders.
Popo's exit is a recent observation, not a confirmed match absence. Gamba's attacking connections appeared in recent games, while Ichimori started the latest match despite Araki's goalkeeper injury. I expect Gamba's midfield recoveries and fresh attacking options to grow in influence after Fukuoka's opening pressure. That's why I'm siding with Gamba Osaka.