This does not make much sense on either end -
Have a hunch that it is not quite exactly what either one said / heard
Might be that Hochuli said something a just bit more like - 'The difference is your running'
( the contraction of You are - 'You're' vs the possessive - 'your')
- with maybe some other words - -
- but to Newton it essentially may have come across sounding like - 'hey ... when a big young healthy hunk like you takes off and runs the way you do , we are going to see it differently from when those older more frail QBs do a little scamper'