The Swans had a decent shout for a spot kick after Mo Diame appeared to move his arm in the direction of a goalbound effort in the first half of the contest at St. James' Park. "In 10 seconds, the video referee would give a communication saying, "Stop, penalty and red card", I am absolutely sure".
Newcastle United fans have turned to social media to fume over the performance of Dwight Gayle in their 1-1 draw at home with Swansea on Saturday. I must be honest, I didn't see it - I said to the referee I didn't see it - but with the technology that we have at the moment, after one minute my assistant said it was a clear penalty and a red card.
"I am absolutely sure that would have been a red card and a penalty, absolutely sure".
Jordan Ayew headed the visitors into a 61st-minute lead as they finally found their feet after the break, and although Joselu levelled just seven minutes later, fellow substitute Wilfried Bony might have won it at the death but for DeAndre Yedlin's goal-line clearance.
Should Swansea have been awarded a penalty?
"It was like against Tottenham, their first goal is offside and would not be valid", Carvajal added.
"In the last two away games, we've got four points, which is very positive", he said on The Swans' progress.
Benitez concedes that Joselu - who cost a reported £5 million (A$8.66 million) from Stoke City - could chip in with more goals, but says the Magpies would have to pay much higher fees to secure a better alternative.
Benitez said: "I think in this new world of football now where everything is so expensive, we knew he could score goals, that he could make a contribution, and he's doing that".
"We want to jump up positions".