Matic was speaking after making his competitive United debut, playing the entirety of Tuesday's 2-1 UEFA Super Cup loss to Real Madrid despite only having had 45 pre-season minutes in red under his belt.
The match will be played at Old Trafford.
Slaven Bilic's outfit are set for a showdown at Old Trafford where Jose Mourinho's Manchester United await.
"No doubt he would again be another big signing and previous year he gave a big boost for the team", Blind said, per the Daily Mail.
Guardiola and Mourinho will have a lot to prove following the amount of money both managers have splashed in this transfer window.
"But I was not thinking of it [buying him] because I always thought I never like to go to players that I think are the impossible mission and I felt there was no chance".
"We have a central midfielder and a striker, so obviously another player would be one coming from the sides, but we have players and if we can not strengthen then we have people we trust". And they are spending money as we speak. But the new season has brought more than its fair share of challenges for the Italian manager.
"We are going to try to give a hard fight to the top teams in Europe in the Champions League".
"If they survive this year, the rest I'm sure will start to take care of itself".
United have three remaining players on the treatment table with Luke Shaw, Marcos Rojo and Ashley Young all continuing their recoveries from serious injuries sustained last season. "They can still be like new players for us later in the season, so we are fine".
But the United boss thought that was the impossible dream - until a surprise phonecall told him that he had finally got his man.
"We are exchanging ideas and it's with Mr (Ed) Woodward and Zlatan's agent (Mino Raiola), but the important thing is the final decision is the best for the player". He started the first game for Barcelona which meant it ruled the deal out to get him.
'I'm on fire, ' he smiled when asked to describe his mood.
But such was the maturity he showed during his first-team opportunities - notably in a 1-1 draw at Manchester United in January - that regular starter Nathaniel Clyne could soon be under pressure for his place.