Infographic: Dortmund and Schalke's boys from the Ruhr
The Revierderby between FC Schalke 04 and Borussia Dortmund is the fiercest rivalry in German football - and especially so for players who were born and raised in the Ruhr region where both clubs are situated.
bundesliga.com takes a look at some of the local lads set to take part in Sunday's showdown...
Read: Schalke vs Dortmund match preview