This is the 2885th most frequent Swedish word.
chelseas
The word "chelseas" does not exist in Swedish. It may be a misinterpretation or misspelling.
In this sentence, 'Chelseas' is used as a possessive form to indicate ownership of the playing style that Chelsea, the football team, is associated with.
Chelseas spelstil är både offensiv och defensiv.
Chelsea's playing style is both offensive and defensive.
Here, 'Chelseas' is again used as a possessive to qualify the noun 'bästa match', describing the match related to Chelsea.
Jag såg Chelseas bästa match i den här säsongen.
I watched Chelsea's best match this season.
In this statement, 'Chelseas' denotes the ownership or association of the players with Chelsea, highlighting who the players belong to.