The Philadelphia Union teenager's movement and pressing show why his USMNT breakthrough is about more than one spectacular goal. The challenge is balancing freedom with restraint.
The 22-year-old is quickly becoming one of the most talked-about talents in the Scottish Premiership following a string of dominant displays for Rangers. The former Philadelphia Union man has been a revelation at Ibrox, leading to suggestions that he could eventually command a fee that would eclipse the club's current transfer record.