Always up for a fun challenge ???? #trainingneverstops #challengeyourself #mothernature #makingmemories #sunvalley

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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.

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