Mourinho and Shaw worked together for two-and-a-half seasons during the Portuguese’s spell in charge at Old Trafford.
The former Chelsea, Real Madrid and Inter Milan manager regularly called Shaw’s performances into question and hang him out to dry several times before his departure as Manchester United boss in December 2018.
Mourinho, who is set to take over as AS Roma manager later this summer, has been working as a pundit for TalkSPORT in the ongoing EURO 2020, and he criticised Shaw’s set-piece deliveries during England’s 1-0 win over Czech Republic last Tuesday, describing them as ‘dramatically bad’.
"I don't really understand it, to be honest," Shaw responded. "I don't know why he is still going on and wanting to point at me. I don't feel like the set-pieces were as bad as he was saying.
"I might have done one in the second half, a corner, that didn't get over the first man. But that was one out of three. The other two or three, I don't think, were as 'dramatically bad' as he says.
"Look, he has got to do his job. He has got his opinion. I am used to him saying negative stuff about me now, so I just pass it by. I leave it be, I ignore it. I just focus on what the coaching staff say here, what Gareth says and that's that, really.
"His voice is obviously very big. He likes to talk a lot about me, as everyone has seen recently. But his voice is his own. He can say what he wants.
"I will focus on myself. I take set-pieces at United, so it wasn't as if it was something I wasn't ready for."
"There is no hiding that we didn't get on," he added.
"I think he was a brilliant manager but, you know, the past is the past. It is time to move on. I am trying to move on but, obviously, he can't.
"He continuously talks about me, which I find quite strange. Even some of the lads have said 'what's his problem?' and 'why does he keep talking?'
"He just needs to move on. Hopefully he can find his peace with that and finally move on and stop worrying about me. Clearly I am in his head a lot and he clearly thinks about me a lot."