'Tough feedback' - how Frankfurt turned Ekitike into £69m star

"Strikers are always more shiny," says Eintracht Frankfurt sporting director Timmo Hardung with a smile.

Hardung knows the near £300m profit the Bundesliga club have made from selling forwards over the past six years is what grabs headlines and attention.

"It's the toughest part of our sport to score a goal, so obviously they draw a lot of attention," he says. "But I think we managed to improve and develop a lot of players."

Hardung is right, of course, that it's not just strikers who have blossomed in the Frankfurt ranks.