The world and European champions kick off their Euro 2012 qualifying campaign at the compact Rheinpark stadium in Vaduz, where the 6,127 tickets sold out several weeks ago, facing a team ranked 141st in the world.
While Spain must be looking forward to a commanding win in their opening qualifier, Del Bosque faces a dilemma in whether to give Torres a chance to continue playing his way back into form and fitness or respect the wishes of his club, Liverpool.
"The reports are good on Torres, he has played a part in their last two games and we don't have any news to say he isn't well," he said.
Although Liechtenstein's entire population of around 35,000 would not even half fill Soccer City, where Spain beat Netherlands 1-0 to win the World Cup, the visitors are taking nothing for granted.
"It would be an error to think everything is going to be much easier now we are world champions," defender Sergio Ramos told reporters.
"We have to have our ideas clearer than ever and we start from zero again because football has no memory."
Liechtenstein's last win was in October 2007 when they beat Iceland 3-0 in a Euro 2008 qualifier, but coach Hans-Peter Zaugg is not discouraged.
"We must believe in ourselves and try to keep the ball," he told the daily newspaper Liechtensteiner Vaterland. "We have the players who can do it."
"It's great for us - we have nothing to lose. Nobody expects we can beat Spain but it's important that we don't start the match believing we don't have a chance."
