Diouf, a retired former Reds striker, recently lavished the praise on Tau and insisted the Bafana Bafana attacker should be plying his trade in Europe.
Tau has since revealed Diouf previously shared the sentiment with him in Dakar in November 2017 during South Africa's ill-fated 2018 World Cup qualifying campaign.
“I spoke to Diouf in Senegal and he expressed his views on my game and what he feels,” Tau said.
“I wasn’t surprised by what he said because he told me way back in Senegal. It only shows the good work that I did with Sundowns and how the coaches are helping us develop as players because we can be compared to European players.
“But it is always going to be the thing whenever they mention a certain player, people start looking for comparisons. It gives a player confidence to especially do more.”
Tau said he will forever be grateful to Diouf for his motivating words.
“The future will always prevail itself, I will see with time. I hope one day he will be happy with what he said.
“I hope one day he will be proud and can say, 'I once said those words to this boy, look at him now'. Even if I don't get to play overseas, it is not easy to go there. If it was easy a lot of players would have went.
“Even if I don't get it, I will still be grateful I spoke to Diouf and that I was able to get a few comments from him that contribute to my game and how I see myself as a person.”