Caixinha had claimed that Wright put a training session on hold before the final game of last season, as the St Johnstone manager was waiting for a spy in the Ibrox camp to leak team news to him.
However, Wright reacted forcefully to those claims, accusing Caixinha of "not showing respect" after wholeheartedly denying he had an insider in the Rangers set-up. Indeed, Wright is mystified by...
"What he's talking about in terms of us getting their team last season, is just someone that's paranoid", the Saints boss said.
"It's a miss not having Michael in the team but we can use him to our advantage, see what he has to say about Rangers".
"But I'm sure it might happen".
The forward returned to Perth on loan after being banished from the first-team by gaffer Pedro Caixinha.
"He obviously has problems, he says there's a spy in the camp, and it looks like he has a spy in our camp to be able to say we changed training, but that's duff information because it never happened".
"We tried to second guess their team, which all managers do, but under no circumstances was I given the team or change training the day before the game because I do the same preparation, and it didn't happen".
"The comments are wrong and untrue about another manager at another club and maybe someone should look into that because he has no proof".
The Light Blues have scored 17 goals in eight Premiership games this season, more than any other team other than leaders Celtic, but their goals against column of 11 is five higher than Aberdeen, who are level at the top with the Hoops on 20 points, and bigger than both Hearts and Motherwell.
He said: "His mind games are working".
"They have had a good start to the season, they are a tough team to play".
"Why am I telling you that? Our motivation has always been to win the game".