Goal.com confirmed over the weekend that the Reds have agreed an £11.7 million fee with the Nerazzurri for the Brazilian playmaker, although Rodgers was keen to stress that the deal is a long way from being completed.
"There's been talks between the clubs but that's about it, so nothing to report," the Northern Irishman told reporters.
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"It was very disappointing yesterday," he admitted.
"There's no doubt, and I know it's a part of the growing pains that we have in terms of going forward but it's something that we're fully aware of and we know in this window it's never going to be fulfilled.
"It was another marker in the fact that we want to develop the group and improve the group and that's something I'm sure we'll deal with in the coming windows."