The Bundesliga football club said Kvist had a problem with the metatarsal in his left foot, ruling the Danish international out until after the league's winter break, reports Xinhua.
Stuttgart coach Bruno Labbadia regards the 27-year-old Kvist's absence as a "big blow, but I'm happy that it was discovered by our doctors on time, otherwise William would have been out for even longer with a stress fracture."
