Marcos Alonso celebrates his 35th birthday today with his career still firmly rooted in top-level football. Born in Madrid in 1990, the Spanish defender remains an active presence in La Liga with Celta Vigo, where he recently featured in their historic win over Real Madrid at the Bernabeu, a result that ended a 19-year wait and was reported by SoftFootball.
That performance summed up much of Alonso’s career. Calm, experienced, and reliable when it mattered most. Earlier in the season, he also faced his former club Barcelona in a dramatic Balaídos thriller where Robert Lewandowski’s hat trick decided the contest, another match highlighted by SoftFootbal.
Football runs deep in the Alonso family. His grandfather, Marcos Alonso Imaz, famously won five European Cups with Real Madrid, while his father, Marcos Alonso Peña, represented both Barcelona and Atlético Madrid. That legacy shaped Alonso’s early years at Real Madrid’s academy before his professional journey took him across Europe.
His breakthrough came in England and Italy, but it was at Chelsea where Alonso enjoyed his most successful spell. Under Antonio Conte and later Thomas Tuchel, he became a vital part of a system that maximised his attacking instincts.
Premier League glory, domestic cups, and the Champions League triumph in 2021 followed, with Alonso often contributing decisive goals from the left flank.
A return to Spain with Barcelona added another La Liga title to his resume, and his move to Celta Vigo has allowed him to bring leadership and experience to a younger squad. Whether deployed as a left back, wing back, or centre back, Alonso’s adaptability has been a defining trait throughout his career.
Chelsea FC shared a 24-second video clip on their official X account, highlighting a stunning free-kick goal scored by Marcos Alonso during Chelsea’s 2-1 Premier League victory over Tottenham Hotspur on August 20, 2017, at Wembley Stadium.
Watch the video below:
Off the pitch, he is known for his professionalism and humility, qualities often mentioned by teammates and coaches alike. As messages pour in from former clubs and supporters today, Marcos Alonso’s 35th birthday feels less like a farewell chapter and more like a celebration of longevity, consistency, and a footballing legacy still very much alive.
