 Matsumoto won German championship titles with München in 2017 and 2018, earning DEL Playoff MVP distinction in 2018.On May 4, 2018, he signed with fellow DEL side Iserlohn Roosters.Matsumoto continued his scoring pace in the 2018–19 season with the Roosters, potting a DEL personal best of 22 goals and 56 points in just 52 games.