Query: What kind of injury can cause a no contest ruling?
Context: A wrestling match may be declared a no contest if the winning conditions are unable to occur. This can be due to excessive interference, loss of referee's control over the match, one or more participants sustaining debilitating injury not caused by the opponent, or the inability of a scheduled match to even begin. A no contest is a state separate and distinct from a draw — a draw indicates winning conditions were met.