AS says Bayer are prepared to sell the 17 year-old striker this month.
Bravo is a former Barcelona youth teamer and is on the fringes of Bayer's first team. However, they're now willing to sell to the highest bidder.
Real Madrid are regarded as being ahead of Atletico in the race for Bravo's signing.
Talks have been held with Bravo, who has been told he would initially be registered with Raul's Castilla squad.