The highly-rated Rangers youngster sealed a switch to Fratton Park on a season-long loan deal, with the option to make it a permanent switch at the end of the campaign.
But the move to the south coast wasn’t without a late twist – with McCrorie revealing that Jack Ross launched a last-ditch bid to lure him to the Stadium of Light.
His head wasn’t to be turned though, the defensive-minded midfielder admitting Pompey were his preferred choice having been left confident they were the ‘right fit’
“I’m really happy with the move and I’m joining a big club who want to progress to the Championship,” said the 21-year-old, speaking to the Portsmouth News.
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“Pompey was the one which stood out to me, though, after speaking to the manager.
“Sunderland came in for me and wanted me to sign.
“But I just felt that Pompey was the right fit.
“Sunderland came in when I was about to do a medical.
“They tried to sweep in and get things sorted, but I thought Pompey was the best fit.
“We just missed out last season and there is a good group of players here who are going to be up there challenging.
“I spoke to the manager, and chief executive Mark Catlin - and they were great with me.
“I was shown around and all the boys made me feel welcome.”