It was reported in two newspapers on Wednesday morning that the Portuguese head coach lambasted his players on Monday, two days after losing to Celtic in the Ladbrokes Premiership.
Caixinha was said to be unhappy with the lack of dressing room harmony, accusing the British players of failing to make their foreign team-mates feel welcome.
He is then supposed to have singled out Dorrans for handing the captain’s armband to substitute Kenny Miller during the second half of the 2-0 Old Firm derby defeat. Having done so without the manager’s consent, Caixinha feels this showed a lack of respect.
Rangers travel to Hamilton on Friday desperate to get back to winning ways after failing to take three points in either of their last two games.