Leeds United's 'incredible' work rate and their fearless assaults on Manchester City and Liverpool show they have what it takes to upset the Premier League's establishment.
The Whites may only be eighth in the early-season table, but they are untouchable in almost every statistic when it comes to hard work.
After four games, they have already made more than 100 tackles, well above any other team in the league; they have won more tackles, averaging a colossal 18 per game, and they have pressured their opponents on more occasions than anyone else.