Wayne Rooney believes his game has changed for the better amid questions over his inclusion in England's starting XI.
England open their Euro 2016 campaign against Russia in Marseille on Saturday having claimed three wins from three in pre-tournament warm-ups.
Captain Rooney started in England's final friendly against Portugal in an attacking trio with Harry Kane and Jamie Vardy.
However, England struggled to break down 10-man Portugal before Chris Smalling's 86th-minute header clinched victory.
With Rooney scoring just eight Premier League goals this season, his place in the side has come under scrutiny but the 30-year-old - who has adapted to a role in midfield for Manchester United in recent times - still has great confidence in his abilities.