Real Madrid midfielder Sergio Arribas he can continue his career in Germany.
According to the source, Borussia Dortmund are serious about signing the 21-year-old player.
Arribas is the youngest Real Madrid player to score at the club world Cup (21 years and 131 days), as well as the fastest goalscorer in the tournament after coming on as a substitute since at least 2010 (after 28 seconds).
