"We all know what happened last year, with Porto beating Monaco in the Champions League final and Greece winning the European Championship," he said.
"It would not be as big a surprise as either of those two if Liverpool went on to win the Champions League.
"The ups and downs they've had are incomparable to any season I had there, but all they need is one or two results to go for them and it could turn out to be their best season for 20 years."