Pablo Mari has joined Arsenal on loan until the end of the season.
In an exclusive feature, Andy Wilkins looks at similar trend that repeats throughout football history.
Chelsea and Arsenal meet again at Stamford Bridge on Tuesday evening.
Arsenal look to make it three wins in a row at home when they host Sheffield United.
Crystal Palace welcome Arsenal to Selhurst Park in the Premier League's Saturday lunchtime kick-off.
Two of England's biggest clubs, Arsenal and Leeds United, face off in round three of the FA Cup.
Arsenal host Chelsea as both sides look for an upturn in form.
Arsenal travel to the Vitality Stadium in Mikel Arteta's first game as Head Coach.
Two out-of-form Premier League sides meet at Goodison Park on Saturday as Arsenal face Everton.
Arsenal appoint Man City assistant Mikel Arteta as Head Coach