The Italian has impressed at Euro 2020 with his nation as they prepare for a final against England on Sunday.
The 23-year-old is being linked to a whole host of clubs, including Italian giants Juventus.
"It would be huge if we can get him," Campbell said.
"We have seen what a great player he is at the Euros.
"Normally, Italians like to stay in their own country, especially when Juventus come calling. But the great thing for Arsenal is Juventus do not have the money anymore. With financial fair play they have to box straight.
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