Belgium manager Roberto Martinez has lauded Romelu Lukaku after his brace against Scotland on Monday.

The Manchester United striker took his tally to 25 goals from his past 21 Belgium matches.

"I appreciated the love fans have shown towards this national team and Romelu in particular," he told reporters. "He is a boy who has been very successful these last three seasons. He creates opportunities and scores a lot.

"I see him very disciplined, and during this international break he has displayed a lot of desire. Sometimes, I'm sad when I see that Romelu does not take advantage of his play on the pitch."