UEFA has made the following announcement:
"UEFA has opened disciplinary proceedings against Arsenal FC coach Arsène Wenger and the English club’s midfielder Samir Nasri following last night’s UEFA Champions League first knock-out round second leg against FC Barcelona in Spain.
"Both are to face charges of improper conduct, and their cases will be heard by the UEFA Control and Disciplinary Body on Thursday 17 March."Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 9 Mar 2011