"Jose Mourinho was my manager for two years - what we achieved for Porto will be in our memories forever", he said.
"But I think it's going to be a very hard season, not just for us, also for the others because the others they can say exactly the same as I am saying".
Jose Mourinho has warned that Manchester United's run of three wins in a row has not changed his view that it will be a "difficult" season for the club.
"He came for €100m, you factor in United pay a premium but I don't see much difference from when he turned up".
When you look at his display in Switzerland on Wednesday night, scoring two goals in a good win, he looks like the Paul Pogba he was when he first signed.
An unimpressive 2-1 home win against Leicester on the opening weekend was followed by a awful 3-2 defeat at Brighton and a 3-0 thrashing at home to Spurs but Manchester United may well have turned the corner after three away wins in-a-row.
"We are thinking on that (getting a victory)", he said.
It is well known that Souness isn't a fan of United midfielder Pogba and he believes that Milner is superior to the Frenchman.
"In Mexico, it is one of the most typical that all the people know". Hargreaves, for one, has argued that the Portuguese star has a big future at Old Trafford.
"He earned the right to be a Premier League manager and he's done fantastic work, the results speak for themselves". "We have to give our best if we want to take points from them". "It's our idea to put what we do in training sessions in the games so in that sense we're ready for it".
That form has lifted United ahead of Saturday's clash against Wolves, yet growing optimism is underpinned by the manager's sustained belief - first uttered in pre-season as transfer frustration grew - that this will be a tough campaign. On all the evidence to date, Wolves are far from relegation fodder and I can see why they're odds-on to finish inside the top-ten. He's not going to stop me, he lets you play, and that's one of the criticisms.
"I have to be on the middle taking care of the defensive process and then like a striker I have to score goals".