I've seen it several times. Kind of cool, I think. When my son wrestled in high school, I noticed he went off to the side of the mat, got down on one knee, and "crossed" himself. (We're Catholic.) He didn't make a big deal out of it, just kind of off by himself. When I asked him about it, he said, "Mom I always pray, and before you ask, I never pray to win. I just pray that I do my best and nobody gets hurt." I thought that was pretty neat that a 17 year old guy didn't care if anybody saw him. I guess it never hurts to "put in a good word"!