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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Clear periods across the north will allow icy patches to develop.
Dry and mostly cloudy at first. Cold tonight.
The former Coventry footballer died last Sunday at the age of 59.