This detailed answer explains the different forms of initial contact in a thigh-and-drive tackle.
Initial contact within a thigh-and-drive tackle can be described as:
One example of this is when the fist, palm facing out, hits the outer thigh in a tackle. Another example is when the flat-hand slaps the thigh repeatedly. Lastly, when fists move toward each other until they touch, it represents another form of contact.
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