With the 2014 Winter Olympics officially kicking off today with the Opening Ceremony, Lindsey Vonn is probably a bit bummed. Tiger Woods‘ girlfriend had hoped to be in Sochi to defend her Olympic downhill title; instead, she’s coping with more rehab on a knee in which she initially tore ligaments more than a year ago.That might have been tougher to deal with in the past, as Vonn said she used to struggle with depression. But she’s in a much better place now.“I have sad days, but they’re rare and the lows aren’t as low,” she said in an interview with Self Magazine. “(This past year), I’ve been the happiest I’ve ever been.”Related Link: Photos – Cover Girl Lindsey VonnMuch of that year has been spent with Woods, whom she began dating early in 2013. Both have experienced much-publicized...

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