Photo: @StevenOleksy When I think of hockey players training in the offseason, I imagine iron, ice, and sweat. I don't imagine safety goggles and balls bouncing off walls. A few weeks ago, Steve Oleksy revealed his newfangled training technique: playing racquetball with Braden Holtby. It's the offseason but the face is still taking a beating. Racquetball with @Holts170…