Keita Baldé Diao was left out of the Italian Super Cup squad, which he did not know how to react to.
The striker has handed in a transfer request following the fact he was not featured in the Italian Super Cup clash against Juventus.
Lazio claimed the player had a muscular problem, but Keita has taken it to social media to deny those claims.
“The lack of a call-up for the Super Cup Final has profoundly hurt me,” wrote Keita on Twitter.
“It is the first important match of the season, for which I had prepared and was ready for action.
“The decision made by the club, which evidently had nothing to do with purely sporting criteria, puts me in a psychologically uncomfortable position and right now I don’t know how to evaluate the consequences of that.”
The Old Lady has offered around €15m for the forward, but the Aquile want over €20m.