Ryan Harrison hasn't won a main-draw match since the Western & Southern Open in August. (Koji Watanabe/Getty Images)
Ryan Harrison is back home recovering from viral pneumonia, which he says he contracted during his three-tournament Asian swing.
"It has been a rough couple of weeks after catching viral pneumonia at some point in Asia," Harrison wrote on his official Facebook page. "I tried to play in Vienna after spending days in bed which then led to six more days in bed before being released by doctors to fly home to the States. Feels so good to be home with friends and family and I am almost 100%. I had my first short hitting session yesterday and I am so happy to be back on court."
The 21-year-old American didn't win a main-draw match in four fall tournaments. He suffered first-round losses at the Malaysian Open and Japan Open and failed to qualify at the Shanghai Masters and Erste Bank Open in Vienna, Austria. Harrison is ranked No. 106.