László Kleinheisler is a Hungarian professional footballer born on March 8, 1994, in Szombathely, Hungary. He primarily plays as a midfielder and is known for his versatility on the field. Kleinheisler began his career at Vasas SC and later played for several clubs, including Puskás Akadémia FC and Werder Bremen. Kleinheisler has also represented the Hungarian national team, making his debut in 2015. He was part of the squad that competed in the UEFA Euro 2016, where Hungary reached the knockout stage. His playing style is characterized by strong passing and tactical awareness.