Merle Haggard continues to battle the lingering effects of the double pneumonia he was hospitalized with in December. He was forced to cancel his Tuesday night concert in Riverside, California. On Facebook, Haggard shared a picture of a fan who was praying behind his tour bus after the cancellation. Haggard wrote, “Thank you to the fans who came out tonight in Riverside! Sadly I’m just not strong enough yet. This man was praying behind my bus and made me realize how much you all care. Thank you so much.”