The two were teammates at City, with Balotelli constantly finding himself in the newspapers for various antics on and off the pitch.
And Richards has confirmed that Balotelli was a handful for City management.
"Everything else seems to be within sync. Balotelli was always late [to meetings]," Richards said on the BBC.
"We used to give all of our money to charities and by Christmas time we'd have £100,000 or £150,000 in there all from Balotelli being late.
"He would be in the building. Say we had a meeting upstairs - he'd be downstairs just relaxing. He'd come to the meeting but he was just a bit dozy."