Dustin Johnson has today undergone surgery on his left knee in order to repair cartilage damage, similar to the surgery Tiger Woods recently had after the Tour Championship.
Johnson, 35, has endured a lacklustre few months on the PGA Tour with just two top-20 finishes in his last eight starts since finishing second behind Brooks Koepka at the US PGA Championship in May.
He stumbled badly towards the end of the season and cited "fatigue" as the main reason for his struggles, highlighted none better than finishing tied last at the 30-man Tour Championship at East Lake last month.
Johnson's management team issued a statement claiming the former World No.1 is expected to make a full recovery after his "routine" surgery and that he is expected to return to competitive golf on the PGA Tour later this year.
The American sustained knee troubles in 2011 and underwent a similar procedure back then to repair cartilage damage.
Woods announced last week that he had an arthroscopic procedure on his left knee to repair minor cartilage damage.
His doctor said: "I expect Tiger to make a full recovery. We did what was needed, and also examined the entire knee. There were no additional problems."
"I would like to thank Dr. Cooley and his team," said Woods. "I'm walking now and hope to resume practice in the next feew weeks. I look forward to travelling and playing in Japan in October."
Woods endured a similarly wretched finish to the season, missing the cut at The Open before withdrawing from the Northern Trust and ending tied 37th at the BMW Championship to avoid making the season-ending Tour Championship.