Portugal sealed a Nations League quarterfinal berth after a Cristiano Ronaldo double with a penalty and an overhead kick helped them hammer visiting Poland 5-1 in Group A1 on Friday.

Rafael Leão broke the deadlock just before the hour with a header before Ronaldo doubled the lead from the spot in the 72nd minute with a confident strike down the middle of the goal.

The hosts then scored three goals in eight minutes through Bruno Fernandes, Pedro Neto and Ronaldo's clever strike before Dominik Marczuk got a consolation for Poland in the 88th.

Unbeaten Portugal top the group with 13 points, six ahead of Croatia, who lost 1-0 away to a Scotland side who are still bottom but now level on four points with third-placed Poland.