Evans, 34, fell in the back of the courtroom within the first sport of the deciding third set, letting out a loud cry and instantly signalling he couldn’t proceed.
The world quantity 59 has endured a tricky season and in tears as he sat on his chair.
Having not gained on the primary ATP Tour since March, Evans performed beautifully to win the primary set 6-4, earlier than Nakashima levelled by taking the second 6-3.
“I am heartbroken on the minute. It is powerful,” mentioned Evans, who could have a scan within the subsequent 48 hours to find out the extent of the harm.
“If I miss the Olympics or Wimbledon, it might be a tricky one to swallow, little question.”
Evans was the most recent participant to fall sufferer to the slippery floor, with American Frances Tiafoe and Australia’s Thanasi Kokkinakis pulling out of matches due to accidents brought on by the identical courtroom.
Queen’s officers mentioned the “exceptionally cooler and wetter climate” within the UK over latest months has been a key issue.
“Grass courts are a residing floor and can all the time react to climate circumstances within the lead as much as the occasion, often having a bent to play extra slippery initially of the match,” a match spokesperson mentioned.
“The excellent grounds workforce have accomplished their highest to adapt to this, making use of the identical rigorous preparation as they all the time do.”
On the courtroom subsequent door, 29-year-old Harris continued his late-blooming ascent with a notable win over Etcheverry.
Harris, who solely earned his first win on the ATP Tour final 12 months, recorded a 6-4 3-6 6-3 victory in his first-round match.
Because of this, he’ll climb to a career-high rating inside the highest 150 subsequent week.
