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French Open semi-finalist Kiki Bertens has withdrawn from the Rosmalen Grass Court Championships in her homeland due to a calf injury.
Bertens exceeded expectations by reaching the last four at Roland Garros, but was unable to go any further as she was beaten by world number one Serena Williams.
There were doubts over whether the 24-year-old from the Netherlands would be fit enough to take on Williams and it was confirmed on Monday that the world number 27 has torn a calf muscle.
Having been clearly hampered by the injury during her straight-sets defeat to the legendary American, Bertens will not feature on the grass in Rosmalen this week after a scan revealed the extent of her injury.
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Bertens, who reached the semi-final of the Rosmalen Grass Court Championships last year, had won 12 matches in a row before coming unstuck against Williams.