Pep Guardiola is aware of the high stakes for Bayern against Shakhtar

Bayern Munich coach Pep Guardiola is well aware of the backlash that awaits him if his team fail to advance past Shakhtar Donetsk and into the Uefa Champions League quarter-finals on Wednesday night.

The Spaniard, whose team won the German domestic double in his first season in charge and are favourites to repeat it, has faced no criticism from his club bosses or fans during his 18 months in charge.

But the former Barcelona coach said that would change if Bayern did not eliminate the Ukrainians in Munich after their goalless first leg in Lviv last month.

“I am a young coach, but I know what to expect,” said Guardiola, whose contract with the five-time European champions expires in 2016. “I know in what kind of situation we are in. I know it will be a major problem if we do not reach the [Champions League] quarter-finals.”

Bayern have set their sights on repeating their 2013 win and are banking on Guardiola, who has already won the trophy with Barcelona, to deliver the silverware.

While it will be too soon for captain Philipp Lahm to stage his comeback from a broken ankle, Guardiola said everyone else was fully fit.

“It is very simple tomorrow – we have to win,” Guardiola said.

Donetsk can advance with a score draw.

Shakhtar travel to Munich on the back of a 2-2 draw against Metalist Kharkiv in the Ukraine Premier League on Saturday, and their coach Mircea Lucescu said a similar performance would see them “doomed” at the Allianz Arena.

“We dominated the play, but made too many own mistakes especially in midfield and in defence and paid the price for it,” Lucescu said. “In Munich, we must put in a fine show, otherwise we’re doomed.

“I’m perfectly aware we are facing an extremely difficult second leg in Munich, Bayern cannot afford to leave the competition so early.

“The final will be played in Berlin, so they will do their best to be there.”