The Hammers would need to pay Newcastle at least £6.5m in compensation and offer the Spaniard up to £24m over three years to make the switch to London Stadium meaning an investment of over £30m.
Sam Allardyce used to earn a package of around £3m per year at West Ham although he is said to be paid £6m per year at Everton. Slaven Bilic was also said to be on a £3m per year package with the Hammers including bonuses. David Moyes was said to be on just £15,000 per week costing the Hammers around £400,000 for six months plus a bonus of £1.25m and £2.1m for Premier League survival and final league position.