Martinez took the job in 2023 after six years in charge of Belgium. Despite having one of the outstanding squads at the tournament, Portugal produced several flat performances in the United States before bowing out in the Round of 16 to Spain with a late 1-0 defeat.

It finished second in Group K after draws with DR Congo and Colombia and scraped past Croatia by a 2-1 scoreline in the last Round of 32, with Josko Gvardiol having a potential equaliser disallowed for an offside in the build-up 13 minutes into stoppage-time.

It was then beaten 1-0 by Spain in Atlanta, with Mikel Merino coming off the bench to score a 91st-minute winner.

Martinez's approach was criticised throughout the tournament, with 41-year-old Cristiano Ronaldo starting all five of Portugal's matches and playing 441 minutes – ever-present defender Renato Veiga was the only outfielder to play more.

Martinez was also slammed for withdrawing Paris Saint-Germain star Vitinha in the closing stages of the Spain game, and for leaving Goncalo Ramos, who scored the winner against Croatia, on the bench.

Martinez led Portugal to its second UEFA Nations League title last year but also oversaw a quarter-final exit against France at Euro 2024.

In a statement, the FPF said: "The Portuguese Football Federation announces that this Wednesday, officially, the contractual connection with the national coach, Roberto Martinez, and his technical team ended.

"The Portuguese Football Federation issues thanks for all the professionalism and dedication shown by Roberto Martinez and his technical team in the last three-and-a-half years, a period marked by the conquest of the Nations League in 2025.

"The president of the Portuguese Football Federation is already working on hiring the future national coach, with the aim of continuing to promote the ambition and culture of victory that should always guide the national team in all competitions it plays."

Portugal has been strongly linked with a move for Jorge Jesus after FPF president Pedro Proenca said Martinez's successor must have experience of Portuguese football, but he noted there were "several possibilities" in the head coach search.

Portugal has lost or been eliminated from six of its past eight FIFA World Cup knockout-stage matches, having lost just one of its first five in the competition.

It did not have a single shot on target in the second half against Spain, only having five efforts overall after the interval, with two of those coming in stoppage-time.

It remains to be seen whether Ronaldo will feature under Portugal's next head coach, after he declared that he had played his final FIFA World Cup game.

Even if Ronaldo has ruled out playing at a home FIFA World Cup in 2030, he is yet to announce his international retirement, saying he will not make any "rash decisions" on his future.