Özil appeared to have worked as a good luck charm as Real broke a seven game winless run against their Madrid rivals to book a place in the semi-finals for the fourth time in five years.
The former Real star shared a picture on his Instagram with his feet up, the match on his television and an impressive DVD collection.
The World Cup winner joined Arsenal in September 2013 from Real Madrid for a record £42.5 million.
The 26-year-old had 81 assists in all competitions for Real Madrid and won the La Liga title under the command of current Chelsea boss Jose Mourinho.
Özil has been in impressive form since returning from injury. The Arsenal playmaker has scored or provided an assist in 11 out of the last 13 games he has played in.