Britain's Heather Watson is out of the Luxembourg Open after losing 6-4 6-1 to Serb Ana Ivanovic in the opening round.
The British number two, who reached the Hong Kong Open quarter-finals last week, lost both games to former world number one Ivanovic, 27, ranked 12th.
The 23-year-old, world ranked 54, levelled by breaking back to love but lost the opening set in 28 minutes.
Second seed Ivanovic maintained the pressure and won in 70 minutes in the first meeting between the pair.
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