Scotland must "get it right pretty quickly" after being booed off for conceding three goals for the second consecutive game at Hampden, says captain Andy Robertson.

Steve Clarke's side delivered a performance that veered from chaotic to meek in losing 3-1 in a friendly against Iceland.

It follows the abject 3-0 home loss to Greece in the Nations League play-off in March, and leaves a cloud over Clarke and his players before World Cup qualifying starts in September.

"I think we all know that's nowhere near good enough," Liverpool's Robertson told BBC Scotland immediately after full-time.

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"I don't want to say too much - we need to digest this and speak in the changing room before we start doing interviews.

"But I think we were too easily played through - any chance they had, they scored.

We were just nowhere near good enough.

"I don't think you can put a finger on one thing but we need to get it right pretty quickly."

More to follow.