Steve McClaren rued his Newcastle players' discipline against Swansea City.
Newcastle United manager Steve McClaren has told Sky Sports that he must reinforce a message of discipline to his players following today's defeat to Swansea City.
Goals from Bafetimbi Gomis and Andre Ayew handed Swansea a 2-0 victory at the Liberty Stadium, condemning Newcastle to their first defeat of the season.
And, once again, new signing Aleksandar Mitrovic was booked just a matter of moments after coming on as a substitute, just as he was against Southampton last weekend.
The Serbian is already in danger of becoming a villain in the Premier League due to his full-blooded nature, and after two bookings in the first two weeks of the season, there is a sense that a red card may not be too far away.
Manager McClaren was asked by Sky Sports about Mitrovic's discipline, before admitting that he will tell his players before the next game that they need to keep 11 men on the pitch following Janmaat's dismissal.
"I think it was just the reaction of the other players and the reaction of the crowd, and I think the referee was kind of sucked in to that," said McClaren of Mitrovic's booking. "That's how he plays the game. The last message we will say next week before we go out is make sure we keep 11 players on the field," he added.
Newcastle face a trip to Old Trafford next Saturday, and referees can become somewhat intimidated by the huge Manchester United crowd, as history has proven.
The Magpies players must not get drawn in to any off-the-ball incidents in front of a packed Old Trafford, with McClaren desperate for some discipline in his side following today's dismal showing in South Wales.