The midfielder left his former club in March and is looking forward to getting his career back on track with his new side
Relegation-threatened Darmstadt have handed Kevin Grosskreutz his next opportunity after his exit from Stuttgart, though they will not see him on the pitch until next season.
After finishing 14th in their first season back in the Bundesliga, Darmstadt have struggled this time around and only have 15 points from their 28 matches - leaving them rooted to the foot of the table.
Their relegation to 2. Bundesliga seems inevitable but they are already planning for the future with the signing of World Cup winner Grosskreutz.