Train drivers will stage three fresh strikes in a long-running row over pay, including on FA Cup final day.
Members of Aslef will walk out on May 12 and 31 – and when Wembley hosts Manchester City and Manchester United on June 3.
The union said it has rejected a “risible” 4% pay offer from the 16 train companies it remains in dispute with.
General secretary Mick Whelan said drivers have not had a pay rise at those companies since 2019.
He said: “Our executive committee met this morning and rejected a risible proposal we received from the Rail Delivery Group (RDG).
“The proposal – of just 4% – was clearly not designed to be accepted as inflation is still running north of 10% and our members at these companies have not had an increase for four years.
“The RDG, in turn, rejected our proposals to modernise Britain’s railways and help them run more efficiently, for passengers and for businesses, in the 21st century.
“Consequently, we have today announced three more days of strike action on Friday May 12, Wednesday May 31 and Saturday June 3 at the companies with which we are in dispute, and which are letting down passengers, and taxpayers, so badly.
“We are also withdrawing non-contractual overtime from Monday May 15 to Saturday 20 inclusive, as well as on Saturday May 13 and Thursday June 1.”
