Both managers played down Chelsea defender David Luiz's bodycheck on Jack Reeves during yesterday's FA Cup clash.
Rafa Benitez saw nothing wrong with the challenges and Brentford boss Uwe Rosler was still to see replays of the incidents.
Luiz apologised afterwards to Reeves, who suffered concussion in the incident.
Rosler said: "The player (Luiz) came into our dressing room, he spoke to Jake. I think that's a fantastic gesture.
"Jake Reeves is fine. He wanted to continue, but our medical staff said it's better not to. He will be okay next week."