WATCH as key Chelsea forward picks up worrying groin injury on international duty

By Alex Taylor

Chelsea have had a brilliant start to their season.

New boss Antonio Conte has changed the Blues formation to get the best out of their attacking talents in a move that has worked brilliantly for the west-Londoners.

Special ones: Mourinho hailed his team's best performance of the season

Diego Costa on display for Chelsea

Diego Costa has fired his way to the top of the goal-scoring charts to help move Chelsea up to second in the Premier League table.

But there is bad news for Costa fans.

Check this out:

We reckon this has the potential to derail Chelsea’s season!

Let’s just hope he recovers soon to gives Conte’s side the best possible chance at the title this season.

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To see the best of Costa – check out this below:

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In other football news, Leeds are closing in on this £3.6million January signing.