At 26.7 years, Newcastle United ranked 14th in the 2025-26 Premier League for average squad age. The veteran presence in the ranks at St James’ Park mostly comes from players signed in the first windows following the club’s October 2021 takeover by Saudi Arabia’s Public Investment Fund. More than four years on, this is now a squad in need of replenishment and Newcastle’s early incomings this summer suggest they know that. The sales of Anthony Gordon to Barcelona and Sandro Tonali to Tottenham Hotspur for a combined £169million have already gone through, with Bruno Guimaraes also informing the club of his desire to leave and join Arsenal. Fans are understandably anxious to see some new faces come through the door to balance things up.So far, two 20-year-olds in winger Bazoumana Toure and goalkeeper Ewan Jaouen have arrived from Hoffenheim and Reims, respectively.The next names on the shopping list, as reported by The Athletic this week, are Sean Steur of Ajax and Freiburg’s Johan Manzambi, who has impressed for Switzerland at the ongoing World Cup.Should those moves be completed, what will Steur, 18, and Manzambi, another 20-year-old, bring to Tyneside?Manzambi was one of Newcastle’s primary targets for this window, having been monitored closely across two seasons with Freiburg which brought seven goals and five assists in 38 Bundesliga appearances, 30 of them starts. The numbers aside, there is plenty to like about his profile as a successor to Joelinton or an alternative to Joe Willock, should he also depart.The biggest strength of Manzambi’s game is his dribbling. He is fleet-footed with a burst of speed that he can sustain over long stretches due to his balance and seamless switch between shorter steps and long strides with either foot. When those two combine, you get moments like his early assist for Breel Embolo against Algeria in the World Cup’s round of 32, setting the Swiss on their way to a 2-0 win.