After Roger Schmidt refused to leave the dugout under orders from the referee, the DFB has confirmed it will investigate the incident.
The German Football Association has opened an investigation into the referee row involving Bayer Leverkusen coach Roger Schmidt.
Leverkusen's clash with Borussia Dortmund on Sunday was halted for nearly 10 minutes in the second half after official Felix Zwayer took the players off the pitch following Schmidt's refusal to leave the technical area.
The 48-year-old apologized after the match but explained that he was frustrated to have been sent to the stands without being given an explanation in person by the referee.