Diego Costa goes wild as Chelsea win the Premier League, from dragging Antonio Conte out of his post-match press conference to humping the kitman

WINNING the Premier League is certainly something to be celebrated wildly… but you don’t need to tell Diego Costa twice.

The Brazilian-born forward, 28, had a phenomenal Friday night after unlikely hero Michy Batshuayi popped up in the 82nd-minute to beat West Brom 1-0 and clinch the title.

PA:Press Association

But Costa took his celebrations to an 'interesting' level, including humping the kitman... and dragging boss Antonio Conte out of his press conference.

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The celebrations started on the Hawthorns turf, as the final whistle sparked scenes of utter jubilation for the Blues players.

Costa kicked-off his manic night by appearing to grab captain John Terry by the groin and lift him up... as you do.

As the champagne corks were popped, Chelsea's stars got a little silly after a couple of chugs of bubbly.

After getting some of the spray in his eyes, Costa decided to wash it out with some Gatorade - not water, Gatorade - while simultaneously telling Batshuayi to "f*** off".

From there, the next logical step was to... hump the kitman?

Well that's what Costa did, getting behind the unsuspecting member of staff and... 'thrusting'.

Meanwhile, Chelsea chief Conte was the model pro, handling the media with great maturity... until his party was crashed.

Costa was joined by David Luiz as they dragged their commander-in-chief away from all the questions and seriousness, more than likely to join in the antics.

Earlier in the press conference, the Brazilian duo were spotted at the back of the presser causing all sorts of mischief.

From swinging on some temporary scaffolding to wielding a fire extinguisher threatening journalists who dared to ask any more questions.

That's probably just the tip of the iceberg, but either way, Costa had one hell of a night.

Naturally Twitter responded with pure joy to the bonkers Brazilian's brilliant antics...