Result: Caroline Wozniacki moves into second round

World number one Caroline Wozniacki has negotiated through her first round US Open match against Nuria Llagostera Vives 6-3 6-1.

The 21-year-old never looked in any trouble against her Spanish opponent and wrapped up a straight sets victory in just under an hour.

Wozniacki will take on either Arantxa Rus or Elena Vesnina in the second round.

The young Dane has never won a Grand Slam title.