Feyenoord's right flank should bring the first sustained pressure, but Heerenveen have a direct route into the space behind an advancing fullback. This match can swing on whether the first forward pass reaches Smans or Rivera before the visiting press resets. The second ball after a cross or blocked shot will decide whether either spell of pressure becomes a goal.
Read and Hadj Moussa can feed Valente and the box for Feyenoord. Heerenveen have recently found Trenskow from Rivera's low deliveries and Vente from a Kersten-to-Smans move. Smans started against NEC and Proper played off the bench, overriding older doubt; Feyenoord's Watanabe has returned for minutes and Targhalline is expected available, so the visitors' central cover deserves respect.
Heerenveen have had longer to prepare their outlet runs and can answer a first goal through that same wide receiving chain. I'm siding with Heerenveen to avoid defeat.