United reportedly made a £10million offer last month to sign the Italy international and, according to Quagliarella, the Red Devils have now increased that amount in the hope of winning the race against top Serie A clubs who are also keen to acquire his services.
When asked about United´s offer, Quagliarella told Gazzetta dello Sport: "It seems a serious offer, they have raised it and it is an important figure. Manchester United are a big deal and if it ended up going that way, I would gladly join the Premier League. It is a fascinating and beautiful competition."
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