Roberto Martinez said it is "difficult for me to talk about rumours" after addressing speculation he could replace Ronald Koeman as Barcelona boss.

Martinez saw his Belgium side defeated 2-1 by Italy in Sunday's Nations League third-place play-off, having lost to the Azzurri by the same scoreline in the quarter-finals of Euro 2020.

Speaking after Sunday's game, Martinez was asked about links to Barca, with Koeman's position under threat after an indifferent start in LaLiga this season and back-to-back 3-0 defeats to Bayern Munich and Benfica in the Champions League.

"It's difficult for me to talk about rumours. I've been working with this team for five years and am fully concentrated on this role," Martinez told reporters post-match.

"We came to the Nations League to win it and did not manage that, but now we prepare for World Cup qualifying. I have nothing more to add."

Nicolo Barella's goal and a Domenico Berardi penalty were enough for Italy to defeat Belgium, for whom Charles De Ketelaere's first international goal was not enough to mount a comeback.

It marked the first time Belgium have suffered back-to-back competitive defeats since September 2010 and Martinez, whose team let a two-goal lead slip against France in the semi-final on Thursday, was left frustrated.

"The penalty was a debatable decision and one that frankly I do not agree with. I try to be respectful with the referee, but you need experience at a tournament of this level," he added.

"We are very frustrated by VAR intervening against France, saying referees ought to be given responsibility for their decisions, but why didn't the VAR intervene today when the referee needed help? The frustration grew as the game wore on."

Substitute Kevin de Bruyne, who assisted De Ketelaere's late consolation goal, was also disappointed but felt the experience has been good for some of Belgium's younger squad members.

"We did well at times against some top teams and had many new faces who did more than a decent job today," De Bruyne told Belgian outlet HNL.

"It's a good experience for them to be able to play against opponents of this calibre, but unfortunately we lost twice.

"With all due respect, playing against Estonia is not the same thing and these challenges are necessary for us to grow, both as individuals and as a team.

"We are 'just' Belgium. It's a new generation, we were missing Romelu Lukaku and Eden Hazard today, so we have to be realistic about the team we have.

"Italy, France and Spain have 22 top players to choose from and we do not."