The competition in strong for Retegui, who wishes to be closer to his homeland, but with the glaring eye of several clubs including Milan, Napoli and Lazio.

Inter Frontrunners to Land New Italy Center-Forward

Inter were one of the first teams to lay eyes on Mateo Retegui well before Roberto Mancini called him up. They are in the lead to sign him next summer. However, the competition is growing by the day. They’ll have to capitalize on their advantage soon to avoid surprises.
Retegui has seen his market visibility rise drastically since interest in him has swelled, with top Serie A clubs, including Lazio keeping close tabs.

Tigre Manager Backs Retegui to Pursue Career in Serie A

Italian-Argentine starlet Mateo Retegui has seen his market visibility rise drastically since interest in him has swelled across Europe, with top Serie A clubs, including Inter, Udinese, and Lazio keeping close tabs on his performances. Tigre manager Fabio Radaelli has backed Retegui to continue his playing career in the Italian top flight.
Genoa are going strong in negotiations with Boca Juniors for Mario Retegui, with an agreement expected soon enough, given the striker's discretion.

Inter Also Rumored to Be Interested in Azzurri Newcomer

The father and agent of Mateo Retegui will soon spend some time in Europe to gauge the interest in his son, and Inter will be among the teams he’ll talk to, along with Milan and Roma, as far as Serie A outfits are concerned. He’ll meet with Atletico Madrid first, though.
Retegui was the subject of speculation from giants such as Inter and Napoli, but he ultimately chose Genoa, having consulted Argentine icon Diego Milito.

Retegui Senior Denies Milan Links, Mentions Surprise Suitors

Following news of Roberto Mancini calling up Tigre striker Mateo Retegui to the Azzurri national team, interest in the Argentine-Italian striker has bloomed. However, as his father Carlos Retegui reveals, there were contacts with interested suitors before the 23-year-old forward heard from Mancini: "Mateo is very happy with the call-up."