Karl von Arx

Karl von Arx, commonly known by his pseudonym Tschüppeli, (* 1921; † 1982) was a Swiss footballer who played in the 1940s. He played as midfielder.

Von Arx joined Basel's first team during their 1942–43 season. He played his domestic league debut for the club in the away game on 25 October 1942 against Lugano. He scored his first goal for his club on 21 March 1943 in the away game against Cantonal Neuchatel. But this could not save Basel from a 2–3 defeat.

Between the years 1942 and 1943 von Arx played a total of 46 games for Basel scoring a total of four goals. 31 of these games were in the Nationalliga, four in the Swiss Cup and 11 were friendly games. He scored one goal in the domestic league, the others were scored during the test games.