Federer's next return looks long - he'll challenge, but it's so long - second match point, serve in, weak return, gap on the Fed backhand, big gap on the Fed backhand... it's there!

BBC: Wimbledon: Roger Federer-Tomas Berdych as it happened

Buchina broke back to 2-1 in the next game, but Watson went on to establish complete control, seizing victory with a big forehand to the Russian's backhand, which Buchina could only net.

BBC: Watson wins US Open girls' title

But Calleri - who made 48 unforced errors - could not sustain the momentum and another wide backhand that sailed wide gave Coria his first match point which he converted with a big service winner.

BBC: Coria outclasses Calleri