The 30-year-old arrived for a second stint with the Bundesliga champions last summer, but he has endured a nightmare spell in Bavaria with just one goal and one assist from 11 top-flight appearances.
Furthermore, Costa has started a measly three Bundesliga games this term and is currently sidelined with a hairline fracture in his foot, which has forced him to miss Bayern's last six league matches.
Costa has been tipped to head back to Brazil and link up with Gremio once again, but Romano states that no talks have been held over a move back to his boyhood club.
The former Shakhtar Donetsk attacker was previously linked with a move to Manchester United as a potential alternative to Jadon Sancho, while Leeds United are also thought to be weighing up a move if Raphinha departs this summer. body check tags ::