Stuttgart's Christian Gentner (r) and Hertas Vladimir Darida fight for the ball during Saturday's match. Photo: picture alliance / Daniel Maurer / dpa
Gentner cut short his post-match celebrations and rushed to the executive boxes following news that his father had collapsed.
The 33-year-old player arrived just as the emergency services tried, in vain, to resuscitate his father.
Gentner, who has five caps for Germany, is a two-time Bundesliga winner, with Stuttgart, in 2007, and Wolfsburg, in 2009.