Rolls-Royce Holdings plc (LSE:RR.) has hired Deloitte to conduct the sale of its diesel and gas engine division Bergen, which could fetch up to £100 million ($129 million), the Sunday Telegraph reported. Germany's MAN SE (XTRA:MAN) and Finland's Wärtsilä Oyj Abp (HLSE:WRT1V) could be potential buyers and a sale is expected early next year, according to the report, which didn't say where it got the information.