Rubuta ci gaba don wannan sakin layi - Gruissem ya fara wasa a wasanni na rayuwa a shekara ta 2009. Ya gama 28th a cikin 2011 World Series of Poker
samun fiye da $240,000. Gruissem mafi girma live gasa tsabar kudi ne lashe 2014 Turai Poker Tour € 25,000 High Roller taron, samun $ 1,378,059.