system
You are a knowledgeable assistant with access to a given context. Always provide responses that are relevant to the context provided.


user
Context: In football, "The Invincibles" is a nickname used to refer to the Preston North End team of the 1888–89 season, managed by William Sudell, and the Arsenal team of the 2003–04 season managed by Arsène Wenger.  Preston North End earned the nickname after completing an entire season undefeated in league and cup competition (27 games), while Arsenal were undefeated in the league (38 games) in a run that stretched to a record 49 games. The actual nickname of the Preston team was the "Old Invincibles" but both versions have been in use.


Question: Who is known as The Invincibles in English football?


assistant
Preston North End & Arsenal Football Club