Li said: “It has been very disappointing to be injured again this season because I have been out for a long time over the last two years.
“The reason I came here was to play in matches but, unfortunately, I have been injured. My body is not the problem now, however, as I am back in training and I just need to get match-fit.
“If there is an opportunity to join a good Championship club for one to two months – to get my match fitness back – I will take it. But, obviously, I would prefer to stay at Sheffield United.
“My target for the rest of the season is to be involved in more training and, hopefully, get more opportunities at Bramall Lane.”