#1 Ansu Fati
Ansu Fati has worn the Barcelona senior team jersey for just under two hours, but he has already played his way into the record books.
After impressing with his first two appearances off the bench, the 16-year-old was handed a start from the get-go against Valencia, and he took his opportunity with both feet.
Just four minutes into the clash, he opened his Camp Nou account; finishing a pass from Frenkie de Jong to become the youngest ever goalscorer at the mythical stadium.
Three minutes later, he returned the favour, showing great composure to bear Ezequiel Garay at the byline before cutting back excellently for the Dutchman to place past Jasper Cillenssen.
Ansu Fati is highly rated, with his talent level having not been seen for a long while at La Masia, and despite his young age, he seemed unfazed by the grandness of the stage he was on and was more than willing to take on opposition defenders more than twice his age.
He also showed that he was unafraid of shooting from distance, and while some way skewed way wide of the goal, this skillset would come in handy for Barcelona at some point during the campaign.
He was substituted on 60 minutes and got a standing ovation from everyone in the crowd including Lionel Messi, and with Barcelona needing to quickly start planning for life post their mercurial Argentine, Ansu Fati could well be on the way to making Messi's exit from the scene less impactful.