Detailed Instructions: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Problem:The Footbonaut is a football training machine which fires balls at different speeds and trajectories at players, who must control and pass the ball into a highlighted square. Footbonaut was invented by Christian Guttler in Berlin, Germany. The machine is also described as a robotic cage. Mario Gotze's winning goal of the 2014 FIFA World Cup Final has been credited to his years of practice using Footbonaut. The Footbonaut is also credited for the success of Borussia Dortmund, who first used the machine. There are several undisclosed clubs in Germany currently using Footbonaut in their trainings. Question: A German professional footballer who plays as an attacking midfielder for German Bundesliga club Borussia Dortmund and the Germany national team shot a winning goal in the 2014 FIFA World Cup Final that was attributed to his years of practicing with Footbonaut, who described this football player as "one of the best talents Germany has ever had." In 2010? Answer: Matthias Sammer
Solution:
Mario Gotzes winning goal of the 2014 FIFA World Cup Final has been credited to his years of practice using Footbonaut.