Dortmund signs midfielder Da Silva

Borussia Dortmund has signed Brazilian midfielder Antonio da
Silva on a free transfer from German second-division club
Karlsruhe.

Dortmund said Tuesday that the 32-year-old Da Silva signed a
one-year contract.

The midfielder has been training with the Bundesliga club since
early July. He previously played under current Dortmund coach
Juergen Klopp at Mainz.