Barton, 24, was suspended on Tuesday until the end of the season after a violent altercation with team-mate Ousmane Dabo during a training game at City´s Carrington training complex. However, McKay said Barton was acting in self-defence and City were wrong to discipline him as harshly as they have done.
"If he had scored three goals in the last three games do you think they would have dropped him?" he told PA Sport. "He is an easy target. It was self-defence."
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