Liverpool boss Kenny Dalglish had no complaints with Pepe Reina's red card or Andy Carroll's petulant reaction to being substituted during the defeat to Newcastle.
The Magpies made it six defeats in seven games for Liverpool with a 2-0 success at St James' Park, thanks to two goals from Papiss Cisse.
To complete a miserable afternoon for the Reds, Reina was sent off late on for an apparent head-butt on Newcastle defender James Perch and Carroll stormed off down the tunnel after he was substituted.
Dalglish felt the turning point of the game was when Danny Simpson appeared to handle the ball on the line with the game still goalless.
"We had chances and we were unfortunate not to get a penalty, and that would have left us playing against 10 men," Dalglish told Sky Sports News.
"Then they got the goal, which from our point of view was disappointing, and the boys showed frustration and maybe started feeling sorry for themselves.
"Pepe got frustrated and got himself a red card and Andy marched up the tunnel (after being substituted), he was frustrated and disappointed for himself and at the result.
"We don't have a problem with people showing their disappointment or frustration, but we need to channel it better than we have done.
"There's no problem with the red card for Pepe but there is a problem that we never had a penalty kick."
Carroll was booked for diving on is first return to Newcastle since his big-money to Liverpool after tumbling over Tim Krul when the keeper challenged him in the penalty area.
Dalglish admitted it was not a penalty, but felt it was harsh to book Carroll, feeling the big striker had lost his balance resulting in him falling over.
"I don't think it was a penalty but neither did I think Andy was trying to get a penalty," added Dalglish.
"The decision not to give a penalty was correct but it was harsh to show him a yellow card, he was always struggling to keep his balance."
Will Kenny Dalglish be Liverpool manager at the start of next season?