As Tommy Haas says, he's always up for a fun challenge. What part of running around the snow, doing pushups and jumping into what must be a freezing pool is fun? That's unclear but the 40-year-old did it with enthusiasm on a recent boys trip to Sun Valley, Idaho.

The German will soon thaw out though as he's getting ready for Indian Wells in early March.

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Haas, who retired just last year from the pro tour, is entering his third year as the director of the BNP Paribas Open.