Roger Federer and Serena Williams both won their first-round singles matches on a day temperatures soared at Wimbledon.

Swiss top seed Federer, who is 37 in August, began his bid for a record-extending ninth men’s title with a 6-1 6-3 6-4 win over Serbia’s Dusan Lajovic.

American Williams, 36, battled blustery conditions to reach the second round with a 7-5 6-3 victory over Dutchwoman Arantxa Rus.

British wildcard Katie Swan reached the second round for the first time as she beat world number 36 Irina-Camelia Begu 6-2 6-2.

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