Portugal ensured they kept the pressure on Switzerland in World Cup qualifying Group B with a 4-1 win over Latvia on Sunday.

Cristiano Ronaldo put the Seleccao in the lead after 28 minutes, but  Latvia fought back  to make it level  in the 68th minute .

William Carvalho came to Portugal’s rescue just a minute later, though, when he got on the end of a Quaresma cross and knocked it past the goalkeeper.

Ronaldo put the result beyond doubt late in the game with his second before Bruno Alves added a fourth.

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