There was a moment during the North London derby that seemed to sum up Dele Alli, Tottenham's preposterously talented young midfielder, rather nicely. Erik Lamela had done good work on the left wing, pressing and harassing the Arsenal players as most of his team had done all game, but after winning back the ball he tried a trick too many instead of playing a simple pass inside.
Alli, all of 19 years old, bawled at his teammate for not choosing the more sensible option, and Lamela bowed his head in apology and even deference. In many situations, a teenager with a handful of appearances above League One level screaming at a £25 million signing with 13 caps for Argentina might be considered impudent, and the actions of a kid with ideas above his station.