Lazio chief Igli Tare believes Keita Balde Diao will be regretting his move to AS Monaco.

Balde Diao left Lazio for Monaco last summer, but has struggled for action under coach Leonardo Jardim.

Tare told Sportitalia: "Keita was under-priced, I'm sorry about his goodbye, he was a 15-year-old with Lazio, he went away as a man.

"It's part of our lives that things can change, but he was paid a little because of his contractual situation.

"His potential was not expressed to the maximum."