Mauricio Pochettino issues a warning to Nicolas Jackson about receiving 'cheap' yellow cards after speaking with the 24-year-old striker

Upon receiving a fourth dissent booking in five matches against Bournemouth last weekend, Mauricio Pochettino talked with Nicolas Jackson to attempt to improve the striker's on-field conduct.

In Chelsea's early-season troubles, the summer acquisition from Villarreal has cut an increasingly dissatisfied figure, scoring only once in last month's 3-0 victory against Luton.

After Pochettino's first five matches in charge, Chelsea is 14th in the Premier League and has gone two games without scoring.

Jackson, who cost £31 million and was acquired in part to make up for the team's pitiful 38 goals scored in the league last season, has showed signs of potential.

But he played a minor role in most of Chelsea's drab draw on Sunday at the Vitality Stadium, when the home team easily handled what little danger Pochettino's team presented.

The manager reaffirmed his plea for Jackson and the other young newcomers to the team to be given time, and he used Real Madrid's Vinicius Junior as an example. Junior was one of the most productive attackers in Europe last season.

“I had a meeting today (Friday) with Nicolas and Enzo (Fernandez),” said Pochettino. “I said ‘come on, a striker with four yellows cards for protesting?’ You need to get yellow cards but in different actions, not for that. Not so easy, so cheap. It’s going to put him in a very difficult situation with the team.

He understood. But Jackson is 21, he’s young. He needs to learn, needs to improve, needs to settle. He’s going to be a fantastic player. But he needs time.

“I like to make similarities with players at other clubs. Jackson is a fantastic player but he needs to be calm and relaxed in front of goal. I said remember Vinicius, he took three seasons, or two and a half seasons, to perform (at Real).

“We’re talking about young players. You can blame us, blame me. We can talk about tactics. But they need time. It’s no doubt we have amazing talent on the team, but now they need time to settle.

“But he needs to be clever not to protest to the referees in this way.

“Maybe it’s his normal behaviour on the pitch, it’s something maybe he can improve. Maybe this season they change the rules, he came from Spain where it’s different the relationship with the referees.”