For all the impressive pipeline of talent now finally emerging through the ranks at Stamford Bridge, did they let a star-in-the-making in Declan Rice unknowingly slip through their fingers?
When asked if Chelsea made a mistake in releasing the midfielder as a 14-year-old, manager Frank Lampard was unequivocal in his response: '[We] wouldn't say it's a regret.'
But tonight, seven years after being dropped from the Blues' youth system, the Hammers linchpin has the chance to prove Lampard wrong.
Declan Rice has an opportunity to impress potential suitors Chelsea for West Ham tonight
West Ham, who've had a strong start to the season under David Moyes, have the opportunity to leapfrog Chelsea with a victory on Monday evening - they're currently one point behind.