He once fired a head coach because of his scent and allegedly assaulted Swiss league referee Markus von Känel in 2004 during a live match broadcast.
[3] In 2017, he kicked Austrian pundit and former coach Rolf Fringer down to the ground on live television during a Swiss league match for which he received a 14-month ban.
[4][5] In 2023, he fired Sion's then-manager David Bettoni at half-time during a match against Servette before forcing him to stand on the side lines for the remainder of the game.
[8] In March 2020, Constantin sacked 9 of his FC Sion first-team players after they refused to take a pay cut after the outbreak of the COVID-19 and suspension of the Swiss Super League.
[9] In 2014, Constantin appointed his son Barthélémy as Sporting Director of FC Sion, a position he has held ever since.