Wigan Athletic manager Roberto Martinez has urged Mauro Boselli to improve his Premier League form after the striker bagged a brace against West Ham United on Tuesday night.

A double from the Argentinian was the highlight of Wigan's 4-1 Capital One Cup triumph at Upton Park and Martinez now expects the 27-year-old to be a big asset for the Latics this season.

The Spaniard said: "He looked strong, he looked very sharp with his build-up play and then that clinical finishing in front of goal.

"I was very, very pleased with his work, it is now a matter of allowing him to settle into the Barclays Premier League.

"He showed mental strength and how focused he is to be a success this season and to enjoy his football. If he is at his best he will be a real asset for us."

Boselli moved to the DW Stadium from Estudiantes in 2010.