Gavi believes Lamine Yamal has become the world\'s best player after Lionel Messi.
Yamal scored one, created two and had another goal ruled out for offside as Barcelona advanced into the quarterfinals with a 5-1 Copa del Rey win over Real Betis.
\"Yes, he is,\" Gavi told reporters when asked if Yamal is already the best player in the game. \"Well, after Lionel Messi, he\'s the best.\"