(CNN)  -- A goalkeeper for the German national soccer team apparently killed himself by stepping in front of a train, just months after he and his wife adopted a daughter, police said Wednesday. Robert Enke, 32, was captain of the German top-division soccer club Hannover 96 and had played in eight games for his national team. He was widely expected to be the German team's keeper in the 2010 World Cup. "Preliminary police investigations indicate a suicide," Hannover 96 spokesman Stefan Wittke said. Enke died about 6:25 p.m. Tuesday. His wife Teresa said he left a suicide note. She said her husband had been battling depression for six years but had kept his condition from the public.
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Robert Enke, 32, was expected to start for Germany in 2010 World Cup
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Enke's wife says he suffered from depression for six years
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The Enkes lost their daughter Lara, 2, to a heart condition in 2006
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Germany cancels its exhibition game against Chile
Enke missed Germany's last four matches because of a bacterial infection, but he had recently returned to action with @placeholder.