Reminds me of the thing between Bruce Lee and Burt Ward. Ward had pretended he knew karate to get the part of Robin. Lee challenged him to spar. Ward, very wisely, declined. Lee could have whipped Adam West, Burt Ward and the guy playing the Green Hornet without breaking a sweat.
In interviews, Burt Ward has been very gracious about the staged Robin vs Kato “fight”. He noted, with quite an ironic tone, that a chubby, out of shape actor “beat” what some considered the greatest martial artist of the era.