On September 2, Liverpool officially announced the signing of Swedish striker Isaac and posted a video of Isaac undergoing a physical examination on social media. In the video, Isaac took off his clothes and showed a thin figure, which caused heated discussion among fans, and one of the tweets had been viewed by more than 18 million.

Some fans joked: "I knew he had stopped training, but I didn't expect to go on a hunger strike to protest." Some fans joked: "It looks like he is the best player in Somalia." But some fans said: "The goal depends on his legs, not his torso."