Marco Lehmann is a product of EHC Kloten's organization and joined the SC Rapperswil-Jona Lakers in 2020. After two years in the Swiss League, the forward played his first full season in the National League last season.
In 50 regular-season games, Lehmann recorded 11 goals and 19 assists. He added one goal and three assists to his tally in the playoffs (eleven games). On average, he was on the ice for 17:33 minutes per game.