Gonzalo Higuain said he hoped to sign for AC Milan on Thursday as he arrived in the city ahead of an expected move from Juventus.
The same deal could also take Italy defender Leonardo Bonucci back to Turin after one season with AC Milan.
Hundreds of fans waited as Higuain arrived at a Milan hotel before he said he would undergo a medical early on Thursday, with an agreement having been reached between all parties.
‘It’s great to see so many fans, but I also want to send greetings to those of Juventus who have given me so much affection,’ he said. ‘Tomorrow, I’ll do the visit (medical) and then I hope to sign… We hope to go as far as possible.’
Higuain moved to Juventus in 2016 for €90million (£79m) after scoring a record 36 Serie A goals in the previous season for Napoli. His sudden departure in Naples infuriated supporters.
The 30-year-old has won Serie A and Coppa Italia titles in each of his two seasons with Juventus and scored 55 goals in 105 appearances in all competitions, including 40 goals in 73 outings in Serie A.
Critics, however, say he has failed to make an impact on the big occasion.
He had a subdued World Cup where he started one game, appeared as a substitute in two more and failed to score a goal.
He was left on the bench for the second round match against France as Argentina lost 4-3 and were knocked out.
Bonucci spent seven seasons at Juventus, helping them win six successive Serie A titles, before joining AC Milan for €40m (£35m) in a shock move last year.