How about this pair? Kristi Yamaguchi and Brian Boitano from the Ice Wars competitions.
These artist/athletes were consummate professionals (although Michelle Kwan was still amateur -- in fact at the beginning of her career -- when she was allowed to compete in pro-ams in 1998). They were very serious about their craft.
But the skating boom in the United States following the 1994 Olympics produced a lot of goofy so-called "competitions" that eventually killed the goose that laid the golden egg.
I think the wrestling analogy is apt. Actually, it is pretty cool the way those behemoths have got their choreography down so well that they can slam each other around like that and no one ever gets hurt.
Unfortunately, I couldn’t track down correct title and year of this Russian (or rather, Soviet) ballet movie; I guess I was lucky enough to find the excerpt on Youtube. So, the origins of the story that goes with it remain unclear. Based on my childhood memories, the story goes that after the premiere of this production of Khachaturian’s Spartacus the Minister of Sports of the USSR came to congratulate the leads off-stage and he told them that they should be awarded the Master of Sports title for this job.
For performing arts like ballet, dance, circus, stunt shows, and similar it’s absolutely normal to be serious about their craft and take up physical challenge. It doesn’t make them a sport though. Other terms and conditions do.