Interloper wrote: couldn't even sweep a leg.
This just reminds a true story that happened in Taiwan almost half century ago.
Many years ago there were a famous IMA master and a famous EMA master in Taiwan (I don't want to mention their names here). Every year they met and the IMA master stood in his solid horse stand to let the EMA master to sweep him. The EMA master always swept his opponent’s ankle from behind while his foot was pointing to the same direction as his opponent’s foot was pointing to. The IMA master was always on the ground. The IMA master then spent another year in his Zhan Zhung but next year the result was still the same. After many years, the IMA master finally figured out that it was not that his rooting was not strong enough but the angle of that sweep could not be countered by any skill that exists on this planet (leg escape was the only solution there).