Olympic champion Alexander Zverev said his ligaments are “completely healed” ahead of the Davis Cup on September 13-18 in his home city of Hamburg. He told the Sport Bild newspaper on Wednesday that he still has occasional pain, but his foot is generally healthy. Zverev has not played since hurting his ankle at the French Open in early June and after surgery, missed the US Open. In Hamburg, the German team will face France, Australia and Belgium. Zverev believes that Germany have “quite good chances” of reaching the final round in Malaga since two teams playing in Hamburg will advance. “We don…