Is there a HS wrestling rule against?

I attended a local HS league wrestling tournament today. A very, very good wrestler was wrestling a very good wrestler. But, there was a definite difference in ability, experience, etc. in the 2 athletes, although the lesser wrestler will probably qualify for state. The better wrestler put on a take down clinic---take down and cut the other wrestler, repeat, repeat, etc. Nothing wrong with that. But, when he cut the opponent, usually on or near the circle, with a big shove and a sneer or a giggle, to me it appeared he was taunting the lesser wrestler. After he had built a comfortable lead, 10 plus points, he went to the mat and made lack luster moves, never really attempting get free, and appeared to again be playing with the opponent. Maybe there is no rule against taunting per se', but it was surely poor sportsmanship.