"I'm more of a basketball fan than a football fan, but let's hope football returns soon," Sanchez told reporters.
"It will be the league and the federation to decide (when they return).
"We have started to allow individual training for team sports. Let's hope it's soon, but we'll see it sooner on TV than in the stadium, I'm afraid."
Squads will return to training in phases next week, first training individually, then moving to training in small groups and finally to full group training -- which needs to last at least two weeks before they can return to full competition.
Spain's major sports institutions and the government's department for sport are committed to completing the season.