The striker, re-signed as a free agent last month, came off the bench in late in yesterday’s goalless draw against Brighton and Hove Albion at St James’s Park.
Steve Bruce’s side – who had been booed off at the break after a dismal first 45 minutes – had their best spell with Carroll leading the attack and fellow substitute Allan Saint-Maximin on the left side of midfield.
The biggest cheer of the evening was for Carroll’s introduction.
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“It was an unbelievable feeling,” said Carroll, who was making his comeback from ankle surgery. “It was just disappointing we didn’t get a win.
“The fans gave me an unbelievable reception, and it was great to be back on pitch. When I was driving in, the fans were great. Warming up, getting on … the cheers were fantastic. It’s better than I thought it was going to feel.”
“It was great. I was wanting to get out there a little bit longer. When I was warming up, the fans were fantastic. They stuck by the team.”
On the roar from the stands when he went on, the 30-year-old told NUFC TV: “Unbelievable. I can still hear it now ringing in my ears. It was amazing for me and the fans.”
Gateshead-born Carroll was sold to Liverpool by Newcastle for £35million in January 2011. He was released by West Ham United in the summer.