Heather Watson bows out after exhausting day in Hobart

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Two matches on the same day proved too much for Heather Watson as the defending champion bowed out of the Hobart International in the quarterfinals.

Having successfully got past Monica Niculescu after returning to finish their rain-affected match, she could not get past Sweden's Johanna Larsson in a match which started just before midnight.

The Briton won the first set 6-3 but ran out of steam to lose the next two sets 6-4 6-4.

Earlier in the day she had saved three match points -- saving eight of 13 break points -- against Niculescu to grind out a 6-7(3) 6-2 7-6(3) victory over the Romanian.