Both sides go head-to-head in an FA Cup replay
As Manchester United and West Ham reconvene at the Boleyn Grounds for an FA Cup quarter-final replay, both sides will have a few homegrown stars in their ranks.
The likes of Marcus Rashford and Jesse Lingard have emerged for Louis van Gaal's side this season, while Mark Noble remains the hometown hero for the Hammers, with defender James Tomkins also having emerged through the academy.
But it's no comparison to the United Class of 92 era or West Ham's Tony Carr-inspired crop from around the turn of the Millennium.
Ryan Giggs, David Beckham, Nicky Butt, Paul Scholes and the Neville brothers emerged together from United's youth ranks to win everything there was to win at club level.
But Frank Lampard, Rio Ferdinand, Joe Cole, Jermain Defoe, Michael Carrick and Glen Johnson were a fellow six-man strong panel of players who came turned pro at West Ham between 1995 and 1999, although they all enjoyed the bulk of their success elsewhere - unlike Man United's crop.
So how do both crops compare head-to-head when it comes to the pure numbers of success?
Frank Lampard, Jermain Defoe and Rio Ferdinand during England training in 2005 Picture by: Mike Egerton / EMPICS Sport
Beckham went on to captain his country for years, while Ferdinand and Lampard also wore the England armband.
Ryan Giggs of course represented Wales, although his caps rate was quite low given his status in the game.
But overall United's Class of 92 won 428 international caps in total, while West Ham's six notched 386 altogether.
Each of the Class of 92 won the Champions League in 1999 as well as multiple Premier League titles and FA Cups, while Lampard, Ferdinand and Carrick won Europe's big one and the league for Chelsea and Man United respectively.
So when the trebles of Premier League (or also La Liga and Ligue 1 in Beckham's case), FA Cup and Champions League trophies are pooled together, United's Class of 92 have 79 trophies won as part of teams, while the Hammers group notched 29 for their respective clubs.
They mostly thrived within teams as well as being outstanding individually, but when it comes to PFA Team of the Year inclusions and PFA Player of the Year awards, the Class of 92 won 19 of those while the six from West Ham had 16 of those.