[2] 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.

[3] 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.

[5][6][7][8] She was awarded Volleyball-Award 2010, by the Germany Volleyball Association for her services to the sport.

[9][10] In April 2010 she decided to retire from indoor volleyball and switched to beach volleyball, partnering Rieke Brink-Abeler[11] playing the 2010 and 2011 Swatch FIVB World Tour.

[17] Grün won the silver medal and the Best Server award in the 2012 FIVB Club World Championship, playing with the Azerbaijani club Rabita Baku.