La Blaugrana's current coach Ronald Koeman retained the faith of Joan Laporta over the summer, but he is thought to be hanging onto his job by a thread in Catalonia and is not expected to see out the season.
Martinez is reportedly one of Laporta's leading candidates to take over, but the Red Devils coach is not considering a change of scene while he seeks Nations League glory with Belgium.
Speaking to AS, Martinez said: "I haven't really thought about it. I have been thinking about the Nations League for a year and a half and that is what worries me now. My opinion would be quite misaligned.
"I've been away from home for many years. There are not too many fans who know about my career, or that I was seven years in a row in the Premier. This makes me laugh. I think there was a change in the 2018 World Cup.
"We had the affection of Spanish fans, I noticed it right away. For me, it was a great illusion. From there, the coaches are always in the rumors. When the team wins you dream for other projects and when the team loses you are on the verge of cessation. You get used to it and you live outside of all this."
Martinez will oversee Belgium's Nations League semi-final with France on Thursday night, as the Red Devils seek a place in Sunday's final against either Italy or Spain. body check tags ::