The Newcastle manager says Benitez is amazing and admits his side have a tough task at Anfield tomorrow.
"Not many people will give us a chance at Liverpool but that does not affect me," said Shearer.
"Upsets have been caused and I will be telling the players that.
"They have a very good side with world-class players and an amazing manager, but I want to go to Anfield and get something.
"We go there in good spirits after a good week of training. There is belief among the players and we will be going there to give it a good go."