Ajax have completed the signing of U.S. Men’s National Team Under-20 player Alex Mendez. The 18-year-old was previously on the books of Bundesliga side Freiburg and will join the Jong Ajax squad initially.Mendez did not make any appearances for the Freiburg first team, although he did manage three goals and make one assist in 13 games for their U-19 side. Article continues below Editors’ Picks Emery out of jail – for now – as brilliant Pepe papers over Arsenal’s cracks What is Manchester United’s ownership situation and how would Kevin Glazer’s sale of shares affect the club? Ox-rated! Dream night in Genk for Liverpool ace after injury nightmare Messi a man for all Champions League seasons – but will this really be Barcelona’s? He will be hoping to break his way into the senior Ajax squad, as a void has certainly been left in the midfield after Frenkie de Jong linked up with Barcelona ahead of the 2019-20 campaign.More signings are expected in Amsterdam before the end of the transfer window, with captain and centre-back Matthijs de Ligt also moving on to Juventus.A statement from the Eredivisie club read: “Ajax has reached an agreement with Alex Mendez and SC Freiburg about the immediate transfer of the player to Amsterdam. The midfielder signed a contract that will take effect immediately and has a duration of three seasons, up to and including 30 June 2022.”Mendez was born in South Central Los Angeles and previously played for the youth teams of LA Galaxy before departing to Europe in 2018 to pursue his career as a professional. The midfielder has particularly impressed in his performances for the USMNT junior sides, though, and has been tipped as a potential star of the next generation. He starred as his country claimed the 2018 CONCACAF U20 Championship title, winning the Golden Ball as the competition’s best player after scoring eight goals in the successful campaign. Mendez ended that year by being named US Soccer’s Young Male Player of the Year, an award previously won by Chelsea winger Christian Pulisic.And more recently, the new Ajax recruit featured in the USMNT’s run to the 2019 FIFA U20 World Cup quarter-finals, a competition in which England failed to qualify despite having won the previous edition of the tournament in 2017.Mendez could make his debut for Jong Ajax in their opening league game of the 2019-20 campaign when they take on FC Oss on August 9 in the Dutch second tier.