Fred Grzybowski carrying out a “Can-Can” over Pittsburgh in 2009
Fred Grzybowski has had his lip reattached with 30 stitches, has a giant scar on his elbow, and has another beast of a scar on his abdomen. Dalton Smith has smashed both kneecaps and broken his nose. Their injuries don’t come from accidents while riding bicycles or skateboards but, probably more unexpectedly, from bouncing into the air on pogo sticks. Both Grzybowski and Dalton are athletes in a comparatively newfangled sport: extreme pogo, or Xpogo, as it is known.