The unhappy Barcelona midfielder showed off his talents on Friday when he scored twice as Brazil won their opening Copa America game against Bolivia but Mellor insists that the Reds have not missed the 27-year-old.
"I think Coutinho was a great player for Liverpool and I really did enjoy watching him. He had creative influence to make things happen and of course I was disappointed when he left," said Mellor to AmericanGambler.com.
"Leaving for Barcelona for whatever reason, he hasn't shown the same quality at Barcelona that he did at Liverpool. One of the biggest compliments that you would give the current Liverpool side and Klopp, is that they didn't really miss Coutinho.
"They went from competing for the top four to competing for a title without Coutinho, and won the Champions League. He was a great player for Liverpool and loved watching him but he hasn't been missed."