Defender Niklas Süle has returned from an ankle injury to participate in parts of Borussia Dortmund team training, the Bundesliga club said on Wednesday. Süle has been sidelined since early December after suffering a second syndesmosis injury of the season. It is not known when the German international will play his first match. Also training on Wednesday, and for the first time, was midfielder Carney Chukwuemeka, who was signed on Monday on loan from England’s Chelsea. Dortmund have an option t