Last season will go down in history as one of Chelsea's greatest ever.
So to follow the Champions League and FA Cup double they achieved last year, they would need to equal or perhaps even better it.
Chelsea have won many trophies since Roman Abramovich era, and have even managed two doubles in this time.
The three major trophies that Chelsea can compete for have all spent some time in the Stamford Bridge trophy cabinet, but never all at the same time.
But could this be the year that Chelsea manage the big three and go down in footballing history forever?
Up until last season, Chelsea were always a strong competitor for the Premier League title but last year their finishing position of 6th simply wasn't good enough.
Chelsea have made an impressive start to this campaign and are currently sitting at the top of the table but with their recent 0-0 draw at QPR, the gap between Chelsea and the chasing pack has been shortened.
It will probably the usual suspects scrapping for first place again this year, and with the talent that Chelsea have brought in, you would expect them to be one of them.
The problem may lie in the lack of strength in depth in some positions which can be become problematic as a busy league campaign gets into full swing.
If Chelsea can keep their key players fit, and perhaps strengthen further in the January transfer window then they should be up there at the end of the season.
But whether they can win the title is a different proposition.
Chelsea have stamped their authority of this trophy, having won it four times since 2006.
Whoever Chelsea face en route to the final, they usually play well and seem to take the competition more seriously than other top teams.
The competition gives the Blues an opportunity to give game time to some of the younger players in the squad and begin to integrate in to the first team sooner.
This season will be the same, and with Chelsea's wealth of talent in attacking midfield, it gives Roberto Di Matteo an opportunity to try different combinations of players to see what works.
Despite the FA Cup's drop in stature amongst big teams, there are always potential banana skin ties in the competition, and a lower league side always causes an upset or two.
So Chelsea, as well as everyone else, will be wise not to take the competition lightly as it is still a major competition.
Out of the three trophies in the possible treble, I would deem the FA Cup the most likely trophy for Chelsea to win, and I hope Chelsea take it as seriously as they have in recent years.
Lets all take a moment to reminisce about Didier Drogba's penalty in Munich...gives me goosebumps.
Last season's Champions League run was beyond phenomenal, as a Chelsea fan, I doubt I will experience another night quite as dramatic as that one.
But now the confetti has settled and the champagne has been finished, it is time for Chelsea to get their professional heads back on and try and do what has never been done before, defend the Champions League title.
Despite the quality in their group, Chelsea will be expected to come through it to the next round and are probably the favourites to win the group.
Chelsea's victory last year will make them a target for every club they play, which could work both for and against the Blues.
Their opponents will be extra fired up when they play Chelsea, and this could either create a good performance or put pressure on them and cause slip ups.
The same goes for Chelsea, they can either go in to each game with the pressure of knowing they are defending Champions or just go in to the competition with nothing to lose.
Whatever happens, Chelsea are a club to be feared, as was evident last season and they are capable of amazing things.
So Chelsea retaining their European title is by no means out of the realms of possibility, stranger things have happened.
But this could be said about any team in any league before any season because winning a treble is not a regular occurrence.
It requires focus, dedication and almost an unbroken run of good form and fortune, but if this formula can make its way in to the Chelsea squad then who knows.
I would expect Chelsea to be battling on fronts this season and to have as good a chance as any team of winning all three trophies.
But it is a very big ask, and I think even the most biased of Chelsea fans would have a hard time justifying a bet at the bookies on Chelsea winning the treble.
The main thing for Chelsea this season is to improve on their league campaign from last season and to get a good run of games under their belt domestically.
Because with form comes confidence, and with confidence comes impressive performances and belief.
This belief and form will be integral to Chelsea if they are to have any hope of having the most successful season in their history.