Reports today have claimed the Monaco man is set to have a medical ahead of a move to Stamford Bridge next week.
And that will likely lead to Matic reuniting with Jose Mourinho at Old Trafford.
Hislop is confident both summer deals will go through without a hitch.
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“I think both of these are hits,” the former West Ham goalkeeper told ESPN FC.
“Matic featured maybe not as heavily as he would have liked under Antonio Conte, who I think is still trying to find the perfect partner alongside N'Golo Kante. He is indispensable in my opinion.
“Clearly Conte thinks Bakayoko is that man to give a little bit of what Matic does, a little bit of what Fabregas does. He's the perfect fit.
“There's also no question in my mind that Manchester United are in desperate need of a defensive midfielder, who can also get forward.
“Given how good Matic was, given his relationship with Jose Mourinho, that for me is a perfect fit.
“Those are two easy hits in my opinion.”
Matic was a key part of Chelsea’s title-winning side, playing alongside N’Golo Kante in midfield.
In total the Serbian made 40 appearances in all competitions.