UEFA has opened disciplinary proceedings against both Manchester City and Liverpool after Tuesday’s Champions League second leg at the Etihad Stadium.
European football’s governing body has charged City manager Pep Guardiola with improper conduct after he was sent to the stands.
Guardiola marched onto the pitch at the break to remonstrate with referee Antonio Mateu Lahoz after a Leroy Sane goal that would have put his side 2-0 up was contentiously disallowed and was told to sit in the stands for the second half.
Meanwhile, Liverpool have been charged after fireworks were let off in the away end, while they face a further charge over the throwing of objects.
UEFA said its control, ethics and disciplinary body would deal with the cases on May 31.