West Ham recorded a comfortable 3-0 win to begin their Europa League campaign, making light work of Andorran side Lusitanos.
There remains a second leg to negotiate, but Slaven Bilic's side showed enough to suggest it will simply be a formality.
With the club making their earliest ever start to the season, Bilic picked an experimental line-up, handing debuts to youngsters Lewis Page and Reece Oxford, who became the club's youngest ever player.
There was also a return for Argentine attacker Mauro Zarate, who was signed a year ago but fell out of favour under Sam Allardyce and was loaned out to QPR.
He made a positive impression, providing an assist for Diafra Sakho to bag one of his two goals, with James Tomkins adding a third.
Zarate, Page and Oxford all posted on Twitter after the game to communicate their delight at featuring in the win.
Thanks everyone for the messages! So happy to have played again at Upton Park !!!— Mauro Zarate (@mau_zeta) July 2, 2015
Wow what a feeling that was making my debut! a game like that and a full house at Upton Park! Good win aswell! Thank you for messages #COYI— Lewis Page (@LewisPage3) July 2, 2015
Happy to make my debut today and break the record for the youngest player to ever play for West Ham. Thanks for all the support. #COYI— Ox (@Reeceoxford_) July 2, 2015
Hammers co-owner David Gold also took to Twitter to explain how he and Slaven Bilic marked the game for Oxford and Page.
I joined Slaven in the dressing room before the game to present Reece Oxford and Lewis Page with their debut shirts. Special moment. dg— David Gold (@davidgold) July 2, 2015