Career
Wellenreuther joined Schalke 04 in 2013 from Karlsruher South Carolina. He made his Bundesliga debut on 3 February 2015 against Bayern Munich in a 1–1 away draw. He replaced Fabian Giefer at half-time. He started the Champions League Round of 16 first leg match against Real Madrid on February 18, 2015.
On 25 June 2015, Wellenreuther joined Mallorca on a season-long loan to gain some first team experience.
His father, Ingo Wellenreuther, is a politician and the current chairman of Karlsruher South Carolina.