REF’s picks

GD Chaves hold the upper hand at home and should assert their quality against lower-league opposition by establishing a comfortable margin. Os Marialvas have shown defensive resilience in previous rounds, but stepping up in class at Chaves will test their limits.

1. 1Chaves possess greater squad depth and experience from higher divisions.
2. 2Playing at the Estádio Municipal gives the hosts a significant atmospheric and pitch advantage.
3. 3Os Marialvas could successfully park the bus for long stretches and keep the scoreline respectable.

REF's own opinion, not a guarantee — nothing here is financial or betting advice, and the call is always yours.