Beer workers at the Carling plant in Burton-on-Trent, are to hold a strike ballot later this month.
The union Unite claims more than 400 staff at Molson Coors could be sacked after June 10, and reinstated on less pay.
The union says nearly 200 workers could lose as much as £9,000 a year in wages.
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Leo Barnes, who was on trial for the murder of pensioners Cynthia Beamond and Philip Silverstone, was found dead in his prison cell.
Unilever's Burton-on-trent factory is to help manufacture a marmite egg which will go on sale this easter.
New Zealand batsman Martin Guptill will return to Derbyshire CCC as an overseas signing for the early part of the 2015 season.