An example of an individual sport where the beginner needs to master the specific sport skills before he can successfully participate in a regulation (official) game of that sport would and could be weightlifting. The reason why this is so is because for the participation on an official weightlifting tournament, the individual has to master certain exercises and with that individual sport skills which have to be performed without failing when it goes on for real on the tournament. For that reason this could be your answer. This is an individual sport though, you could have another answer for the dual sport skill.