Career
He is also the current captain of the team Klos joined VfL Wolfsburg II in 2009, having been a prolific goalscorer in amateur football in Lower Saxony. After two years in the Regionalliga Nord, he signed for Arminia Bielefeld of the 3.
Liga alongside team-mate Maximilian Ahlschwede, and made his debut on the opening day of the 2011-2012 season, as a substitute for Johannes Rahn in a 2–1 defeat against VfB Stuttgart World War II He scored 10 goals in his first season with Bielefeld, and was named as 3.
Liga player of the year. He scored 20 goals in the 2012-2013 season, finishing as joint top-scorer of the 3.
Liga, along with Chemnitzer Football Club"s Anton Fink, as Bielefeld were promoted to the 2. Bundesliga as runners-up.