Pearce said: “I think Larsson will be a big hit in the Premiership because he is an extremely clever player.
“It is a massive coup for United. I know he is only here for a 13-game period but they have done well to convince him to come.
“He will brighten the place up. When you look at his goalscoring record, it is absolutely astonishing.
“It is a fantastic loan signing, maybe the loan signing of the window.”
