Titus Bramble has branded Sunderland manager Paolo Di Canio as a "strange person" and believes he still has a lot to learn.
Bramble will leave the Stadium of Light next month after his contract expires and has revealed his views on Di Canio's outspoken approach.
Di Canio arrived on Wearside in April and achieved his aim of keeping the club in the Premier League but Bramble believes Di Canio still has a lot to learn.
"He's got a long, long way to go before he gets anywhere near as good as Sir Bobby Robson. He's a young manager trying to stamp his mark on things, but he's making some big mistakes." He told the Daily Telegraph.
Di Canio has wasted no time in upsetting a few players at the club. He's called some "ignorant and arrogant" and revealed he's been handing out fines for many of his squad.
He recently compared Sunderland striker Connor Wickham to a "playboy model" and Bramble has admitted that Di Canio is making a mistake by criticising players in the media.
"He's targeted the easy players, the ones who are leaving anyway, trying to show he's the boss. I was fined for not going to a weights session. Everyone else at the club thought it was ridiculous, but he's trying to be tough.
"He comes out in the media and hammers players and he hasn't said a word to them."
He continued: "He's never said anything like that to his (Wickham's) face. He's 19 and the manager is battering him in the media."
Di Canio's initial appointment was surrounded in controversy over his political preferences. Previous statements suggested the Italian was a fascist, something he has since denied.
Despite Bramble criticising Di Canio's outspoken approach, the 31-year old has praised the manager's managerial skills.
"He's a good coach on the training pitch," he added.
"Everything is so detailed. He's one of the best I've played for in that respect, but his man management skills need a lot of work.
"I never got any impression he was racist. From what I saw of him, he doesn't care about a player's colour or creed."
Sunderland is only Di Canio's second spell in management. He joined the Black Cats after leading Swindon Town to promotion in League 2 before leaving the Robins in February and being appointed by the Premier League club.
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