BASEL, Switzerland (Reuters) -Brazilian teenager Joao Fonseca clinched the biggest title of his career on Sunday, storming past Spanish eighth seed Alejandro Davidovich Fokina 6-3 6-4 to win the Swiss Indoors Championships in Basel.

The victory marks the 19-year-old's second tour-level title, his maiden triumph coming in Buenos Aires in February, and his first at the ATP 500 level.