John Carver tells a court a physio at the club told him about abuse allegations.
The RMT union says imposing driver-only services is a risk to public safety.
Lovedoll UK was visited by inspectors following complaints it was running a "sex doll brothel".
"This has been the greatest thing that's ever happened to me."
Nick Dunn, a 32-year-old former soldier, was released from prison in India six months ago.
England all-rounders Ben Stokes and Chris Woakes are set to miss the remaining three one-day internationals against Australia.
League One Sunderland accept a bid from Middlesbrough for defender Paddy McNair which could rise to more than £5m.
Newcastle Evening Chronicle
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