West Ham United have been given the green light to sign Sassuolo striker Leonardo Pavoletti, according to the Daily Mail.

The 22-year-old forward spent last season in Serie B on loan at Varese where he found the net 22 times.

Sam Allardyce is keen to add reinforcements to his side, despite already signing strikers Mauro Zarate, Enner Valencia and Diafra Sakho this summer.

The Hammers are also understood to be in talks with 28-year-old Bulgarian Valeri Bojinov over a move to Upton Park, with the former Manchester City man reportedly on trial in east London.

However, with Andy Carroll out for four months with an ankle injury, Allardyce might take a risk with Pavoletti despite the fact he is relatively unproven.

After spending last year away from Sassuolo, he was a prolific scorer and played 34 matches for Varese. During the 2012/13 season, the Italian scored 11 times to help Sassuolo earn promotion to Serie A.