Nicolas Jackson is facing a dare from Chelsea boss after his ninth yellow card

NICHOLAS JACKSON is facing a brutal criticism from Chelsea boss Mauricio Pochettino for his lack of discipline.

The 22-year-old Senegal forward collected his ninth booking of the season on Monday as he left the BENCH to run across the pitch and celebrate Blues' final goal in the 3-1 win over Crystal Palace.

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Despite having come on fifteen minutes earlier, Jackson rushed to join his teammates as they celebrated an Enzo Fernandez strike in stoppage time.

Jackson now has as many yellow cards as goals this season and is one warning away from a two-match ban.

But only one of his nine bookings was for a foul, while the others were for dissent (4), arguing (2), not withdrawing and now taking the field.

Boss Poch warned Jackson and his young stars about their number of bookings back in September, after the frontman received five in his first six Prem outings and served a suspension.

Pochettino said at the time: “Players like Nico, who are so young and feel and learn the Premier League, need time.

“Players when they are young and have no experience make mistakes.

“This is why we feel disappointed because we see too many situations like this.

“We need to change as quickly as possible. We have to grow up as a team.”

But Chelsea clearly haven't learned as Pochettino's side have collected the most yellow cards (75) in the league this season, more than double Arsenal's 37.

Jackson's latest disciplinary matter comes in the wake of the idea of ​​introducing sin bins into professional football.

A blue card can lead to a period of ten minutes off the field.

Tottenham boss Ange Postecoglou has said it is 'destroying' football, while Liverpool manager Jurgen Klopp dismissed the idea, saying: 'We have to keep it as simple as possible.'