Complex sentence: In the fall of 2016, Mickelson had two sports hernia surgeries, those in the golf community expecting him to miss much time recovering, however his unexpected return at the CareerBuilder Challenge was a triumphant one, leading to a T21 finish.
Split into simpler sentences: In the fall of 2016, Mickelson had two sports hernia surgeries. Those in the golf community expected him to miss much time recovering; however his unexpected return at the CareerBuilder Challenge was a triumphant one, leading to a T21 finish.