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Mauricio Pochettino has urged his Chelsea stars to work on their discipline after many of them picked up unnecessary bookings in recent matches.

Reece James was sent off against Newcastle, before Conor Gallagher suffered a similar fate against Brighton on Sunday.

Marc Cucurella has also been suspended after picking up too many yellows, and now, Pochettino is asking for more discipline from his players.

“We were talking in the meeting and I showed the players clips of the yellow cards,” Pochettino told the official club website.

“There have been too many. The rules have changed this season. We touch the ball from here to there and get too many yellow cards. That is a tic we need to change. We need to be clever.

“You upset the referee and you get a yellow card, and then in an action that can happen during a game, you can receive another yellow card. We have received too many yellow cards like this.

“We were talking about Nico Jackson and the yellow cards were for complaining to the referee. The opponent made the foul, but didn’t receive a yellow card. You complain why not, and you get a yellow card. We need to be clever in improving this area because we cannot be silly and repeat the same mistakes.”

Conor Gallagher was really missed against Manchester United, as his energy would have helped Chelsea’s cause.