Costa added a second by curling in a superb strike from 25 meters in the 55th, a rare long-range strike from a penalty-box predator.
Chelsea beats Southampton 2-0 thanks to Hazard, Costa goals →
For the world champion to consider me is a great honor," Costa said. "Del Bosque has been clear and hasn't promised me anything and I don't want anything handed to me, I want to earn it. I told him I wouldn't join the team if it created problems."
Spain looking for another title in Brazil →
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