Neither Lionel Messi nor Cristiano Ronaldo would be considered fresh enough at youthful Bundesliga leader RB Leipzig, according to team sports director Ralf Rangnick.

Founded in 2009, Leipzig is bankrolled by energy drink giant Red Bull and tops the German league after four promotions in seven years.

Impressively, it has done it with a squad with an average age of 23 - and devoid of any superstars.