If it was not bad enough for West Ham fans watching Tottenham evolve into Champions League regulars in recent years, an important statistic at their new 62,000 seater stadium will make things even worse.
A large section of Hammers fans are still deeply unhappy with the club's heralded move to the former Olympic Stadium, Spurs fans on the other hand can't wait to get into their new home on the White Hart Lane site.
West Ham's move to Stratford from their beloved Upton Park was beset by problems from the start.
Ahead of the stadium move, Hammers fans were promised - among several other things the club has failed to deliver - a state-of-the-art retractable seating solution that would get them close to the action.
In reality West Ham fans have been left with a temporary lower tier built on a complex scaffolding which takes weeks to deconstruct and reconstruct between football and athletics mode each summer.
That has left a chasm between the upper and lower tiers, between the stands and the pitch and between the fans and the owners.
So look away now West Ham fans because a new statistic from fierce rivals Spurs will make for grim reading.
The distance from the Hammers fans to the pitch at the London Stadium is a major bone of contention for supporters and it is easy to see why given they are seated a full 18 metres from the action behind the goals. That's the same as Wembley.
It is nearly five metres further away than Arsenal's Emirates Stadium (13.5m) and over 13 metres farther than at Tottenham's new ground which is just 4.98 metres away.
That closeness will evoke memories of West Ham's famous old Boleyn Ground fans miss so much.
The tightness to the pitch, the larger capacity and design of Spurs' new stadium will surely help generate one of the best atmospheres around.
Yes West Ham's board may argue they are paying less than £3 million to be at the London Stadium while Tottenham have had to shell out close to £1billion.
But the Hammers have sacrificed a large percentage of catering income - which goes to stadium operators E20 - and cannot use the ground to make extra revenue with concerts, events or - like Spurs - to host NFL and other lucrative sports partnerships.
The harsh reality for West Ham fans, though, is that their club has sacrificed so much more than that. Many would argue the club has lost its soul too.
West Ham host Spurs twice in the space of a 10 days after the international break.
The London Stadium will be rocking then but long term supporters have grave doubts it should be their home.
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