STEELWORKERS will be reballoted on strike action if a legal challenge by bosses succeeds in overturning their vote to walk out in defence of their jobs this month.

Tata Steel is pressing ahead with its plans to shut the blast furnaces at its Port Talbot works with the loss of 2,800 jobs.

The firm has dismissed a Labour pledge, if elected on Thursday, to support the industry with investment of £2.8 billion as “irrelevant” and has started legal action challenging union Unite’s strike ballot.