John Prine’s wife Fiona has asked his fans to pray for him after clarifying her husband is still “critically ill.”The country legend’s family announced he is fighting for his life on Sunday after being diagnosed with the Covid-19 virus and hospitalized last week.Fiona told fans her husband was “stable” on Twitter on Monday, raising hopes he was on the road to recovery, but she has since clarified that his condition is not improving and he is still in a life-or-death battle against the disease.“I need to clarify what I mean by “John is stable.” That is not the same as improving,” she tweeted. “There is no cure for Covid-19.