 A ninth-time consecutive German Volleyball Player of the Year (2000–2008), she played in Turkey for VakıfBank Güneş Sigorta Istanbul for the 2008–2009 season.After winning the European Champions League with the Italian team Foppapedretti Bergamo in 2007 for a second time after 2005, Grün was honored "Most Valuable Player" of the tournament.Starting her career in Münster, Germany, where she won the national title in 1997 and the Cup in 2000, she won several Italian Cups (2002, 2006), Championships (2004, 2006) and the CEV Cup (2002 and 2004).