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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Mainly dry, with some sunny spells tomorrow.
Police say they are searching for four people after a suspected ram-raid robbery on a building society in Leamington Spa.
Yamaha rider Jorge Lorenzo set the pace in practice for Sunday's British Grand Prix.