Sampdoria striker Fabio Quagliarella would be interested in a move to Manchester United this summer.
United reportedly made a £10million bid last month for the Italy international and Quagliarella has now revealed the Premier League champions have increased that amount.
"It seems a serious offer, they have raised it and it is an important figure," Quagliarella told Gazzetta dello Sport.
"It seems a serious offer, they have raised it and it is an important figure," Quagliarella told Gazzetta dello Sport.
"It is a fascinating and beautiful competition."
Quagliarella only made the move to Sampdoria last summer from Ascoli and his sporting rights are co-owned by the Genoa club and Udinese.
The 23-year-old made 35 league appearances for Sampdoria last season and netted 13 goals.
He was called up to the national team and scored his first two goals during Italy's 2-0 Euro 2008 qualifying victory over Lithuania.
The forward is under contract at Samp until 2010 and, despite interest from England, is keen to stay in Serie A and retain his place in the Italy squad.
He added: "I am really happy at Sampdoria.
"I would prefer to remain in Italy, having continuity and having the trust of (national team coach Roberto) Donadoni."

United reportedly made a £10million bid last month for the Italy international and Quagliarella has now revealed the Premier League champions have increased that amount.
"It seems a serious offer, they have raised it and it is an important figure," Quagliarella told Gazzetta dello Sport.
"It seems a serious offer, they have raised it and it is an important figure," Quagliarella told Gazzetta dello Sport.
"It is a fascinating and beautiful competition."
Quagliarella only made the move to Sampdoria last summer from Ascoli and his sporting rights are co-owned by the Genoa club and Udinese.
The 23-year-old made 35 league appearances for Sampdoria last season and netted 13 goals.
He was called up to the national team and scored his first two goals during Italy's 2-0 Euro 2008 qualifying victory over Lithuania.
The forward is under contract at Samp until 2010 and, despite interest from England, is keen to stay in Serie A and retain his place in the Italy squad.
He added: "I am really happy at Sampdoria.
"I would prefer to remain in Italy, having continuity and having the trust of (national team coach Roberto) Donadoni."