The Reds were well on course to ending their three-decade wait for a first league title when the top flight was put on hold, with Covid-19 causing over 33,000 casualties in the UK.
Although Premier League clubs are committed to completing the season when it is safe to do so, there are still fears as to whether those plans can still go ahead. The UK government has paved the way for football to resume from June 1.
Van Der Sar is the current CEO of Dutch giants Ajax, who were denied the Eredivisie title despite leading the table on goal difference when their season was ended early.
The 49-year-old however expects a different outcome in England if the season is unable to be completed.
"In my view, with the type of football they played and the points they are ahead, it would be extremely harsh," the former Juventus and Fulham goalkeeper told CNN Sport.
"The Premier League is a well-run league and of course there are big interests on the financial side, the commercial sides.
"But I'm sure they will make a wise decision if they keep on playing or if the league stops, what the results will be depending for Champions League places, relegation or awarding a title to Liverpool.
"If the league doesn't resume, I presume everybody will be okay if Liverpool wins the title."
