This week marked 10 years to the date that Russian billionaire Roman Abramovich bought Chelsea.
A lot has happened since then, with Chelsea winning one Champions League trophy, three Premier League titles, one Europe League, two League Cups and four FA Cups.
Arsenal by contrast have been badly hit by Chelsea's emergence, winning the league in their Invincible season in Abramovich's first year, a season where the Blues also knocked them out of the Champions League. They have won just one trophy since, the 2005 FA Cup.
It is a fact supporters know all too well, and the Gunners' results against Chelsea on the pitch have also been mixed.
Between 2008 and 2010 Chelsea went on a run of five consecutive wins against the Gunners, also winning key FA Cup semi-finals and a League Cup Final.
Arsenal did win a memorable 5-3 game at Stamford Bridge a season ago, but shorn of Robin van Persie last summer, they lost both league games 2-1 to the Blues in 2012/13.
Arsenal fans will be hoping the arrival of Gonzalo Higuain can get them back on track, and finish above their rivals once again, as they did in 2011/12.
They should have faith. Higuain will be the best out and out striker between either of the two sides, better than Torres, Lukaku or Demba Ba.
Chelsea will be pushing to sign their own talismanic striker, with Edinson Cavani linked which could reset the balance, but it makes you wonder why the Blues did not go for the Argentine.
And then it becomes clear: Jose Mourinho.
The re-appointed Chelsea boss managed Higuain at Real Madrid over the past three seasons, and is the man Arsenal can thank for the striker being pushed into their arms.
Mourinho started Higuain in just 19 of a possible 38 games in La Liga last season, leading to the Argentine making his decision to leave the club.
Despite a superb strike rate, Higuain found himself playing second fiddle, which is why he wants to move to Arsenal and be the main man.
When the Gunners face Chelsea, if the deal is approved as looks likely, Higuain will be extra determined to get one over on his old boss Jose Mourinho and prove a point.
And that can only be good news for Arsenal fans, and who knows, perhaps lead to them beating their rivals to silverware before not too long.
Will Higuain be the difference maker for Arsenal? Can they finish above Chelsea next season?
image: © Jan S0l0