Jack Grealish shouts as bald kit man in underpants 'slip and slides' into his Gucci bag during Man City's FA Cup celebration (Photos)

Man City's players indulged in some crazy behavior in the Wembley locker rooms as a kit man slid about in his underwear as they celebrate lifting their second trophy of the year.

A bald Manchester City uniformed guy was seen slamming into Jack Grealish's Gucci bag while slipping in the changing area while partially undressed.

After defeating rival Manchester United 2-1 in the FA Cup final on Saturday, City won their second trophy of the year. But it turned out that despite having had raucous celebrations after winning the Premier League in May, the City players still had a lot more partying in store.

The players' changing area at Wembley was seen on camera just after the final whistle, and one staff member in particular could be seen having a great time.

Winger Grealish posted an Instagram story showing City kit guy Brandon Ashton enjoying the wild celebrations while completely nude, except for his shorts and white socks.

The other players and staff could be seen encouraging him as he prepared to slide around the slick changing room floor.

Grealish yelled, humorously, as he lay defeated on the wet floor: “Hey, watch my Gucci bag!” before rearranging the accessory.