Martim Chelmik signs new FC Porto deal until 2031 | OneFootball

After Bernardo Lima, Duarte Cunha and Yoan Pereira, Martim Chelmik became the fourth European and world under-17 champion to extend his ties with FC Porto. Like his club and national team teammates, the 18-year-old defender signed a new contract for another five seasons, until 2031, with a release clause set at 50 million euros.

Born in Leça do Balio, Martim Chelmik Santos Antunes had his first contact with football at the age of five. The son of a Porto-supporting family, great-grandson of Eleutério Santos, a former FC Porto player, and a club member since birth, he began his development at Dragon Force in Custóias, where he stayed for two years before continuing his path with CLIP Teams.

In 2018, he joined Olival to represent the under-11s and quickly stood out across the various levels of FC Porto’s youth system. That journey earned him his first professional contract, signed in 2024, and culminated last season with the National Junior Championship title, FC Porto’s eighth consecutive title in this category. In 2025/26, he helped the under-19s finish with the best defence in the league, scoring one goal and providing one assist in 21 matches, in a campaign that returned a title to the Dragons that they had not won since 2018/19.

The previous season also brought the young centre-back’s professional debut. On 11 January this year, João Brandão sent him on in the 84th minute of the derby against Sporting B, and the defender helped Porto’s B team secure all three points on matchday 16 of the Segunda Liga.

Martim Chelmik’s qualities in winning back possession and building play from the back began to stand out early, attracting the attention of those in charge of the national teams. With 35 caps for Portugal’s under-15, under-16, under-17 and under-18 sides, the 1.83-metre player was one of the defensive leaders of the generation that won the European Under-17 Championship and the Under-17 World Cup in 2025.

In the European competition, played in June in Albania, he took over a starting spot in central defence right at the beginning of the group stage and never left the starting eleven. In addition to helping keep two clean sheets, he proved decisive against Italy by converting the penalty that sealed qualification for the final. Then in November, in Qatar, he started six of Portugal’s eight matches at the World Cup and played a key role in the run that allowed Portugal to finish the tournament with only four goals conceded. Three of those goals came in the two matches in which the defender did not complete the full 90 minutes. He also scored one of the penalties that sealed Portugal’s place in the final.

Awarded the Order of Merit by the President of the Republic and honoured in his hometown, Martim Chelmik has already begun pre-season with FC Porto B as he prepares to continue representing the club in the Segunda Liga.

This article was translated into English by Artificial Intelligence. You can read the original version in 🇵🇹 here.