The German Football Federation (DFB) has rejected the criticism from referee Patrick Ittrich after he called on the association to limit the physical strain on referees. “We have a very close relationship with the active referees, including Patrick Ittrich,” DFB head referee Knut Kircher said on Wednesday, adding that the Ittrich, who is one of four Bundesliga officials out injured, said that “in the event that something happens to me, I have to build up a network, organize a doctor and a physio.” Kircher, however, said that the DFB offers a support network, with a main medical contact as well…