Grossmann scored his first career NHL goal in a Western Conference Finals game against the Detroit Red Wings on a power play.

Thus all jerseys, trading cards, and rosters from his time in Elitserien with Södertälje SK and his NHL career with the Dallas Stars from the 2006–2012 seasons (as well as his first few games with the Flyers) have his name spelled incorrectly as "Grossman".

[2] After four seasons with the Flyers, Grossmann was traded to the Arizona Coyotes along with the contract of Chris Pronger for Sam Gagner and a conditional draft pick on June 27, 2015.

[5] Having returned to his native Sweden, Grossmann resumed playing after signing a contract for the remainder of the season with Örebro HK of the SHL on December 1, 2016.

[6] As a free agent, Grossmann opted to return on a three-year contract to captain his original club, Södertälje SK of Allsvenskan, on August 2, 2017.