Frank de Boer admitted there is still plenty of room for improvement in his Netherlands team after they needed a late equaliser to draw 2-2 with Scotland.

Memphis Depay's 89th-minute free-kick made sure the Netherlands avoided defeat in the friendly fixture between two nations preparing for Euro 2020.

The influential forward had also scored in the first half, his left-footed volley cancelling out Jack Hendry's opener for a Scotland team left shorthanded following a positive coronavirus case within the squad.

Substitute Kevin Nisbet restored Scotland's lead soon after coming on as the Dutch looked defensively shaky when lining up in a wing-back formation, though De Boer made clear the squad had little time to work on systems ahead of the match in Faro.

"Has the experiment with the 5-3-2 system failed? No, it has not," De Boer said in his post-match interview with broadcasters NOS.

"I'm not worried at all. We only trained on it once, only three times for 10 minutes. In addition, we also played 4-3-3 at the time.

"In addition, Georginio Wijnaldum and Frenkie de Jong only joined later.

"It seems clear that things need to get better. I saw a few good moments, but there were too few."