Barcelona star Lionel Messi is delighted with his two winners for Argentina at the World Cup.

But he accepts his playing form needs to improve.

"I'm happy with the result and about qualifying. It was a tough match and we struggled to find a way past a well-organised defence that didn't leave any spaces in behind," the Barça forward told reporters in the mixed zone.

"There's plenty of room for improvement."

 For the big stories and the banter follow us on Twitter: @tribalfootball