Juventus have reportedly been left frustrated by Arsenal after what the north London side have recently done in the summer window.

The Gunners have started to kick into gear in recent days in regards to the transfer market, with Arsenal recently confirming the permanent sale of academy star Mika Biereth, whilst the north London side are also chasing Wolves goalkeeper Dan Bentley.

With Jakub Kiwior also linked with a move back to Italy, all stations are go for Arsenal, who spent the first month of the summer transfer window rather quiet, like the majority of most big teams around Europe due to the Euros and Copa America.

Yet Arsenal have still managed to frustrate Juventus with their activity this summer.

The north London side are reportedly close to signing the 22-year-old Italian defender, with the finer details of the transfer still being ironed out as Arsenal hope to announce the capture of Calafiori before the end of the week.

However, it appears that Arsenal's pursuit for the talented centre-back has left a sour taste in Juventus' mouth, who under new manager Thiago Motta seemed to have though they were the out-right favourites to land Calafiori.

Indeed, the Italian coach and defender both guided Bologna to a shock UEFA Champions League finish last season, yet it appears that Calafiori has been swayed to join Arsenal, with Mikel Arteta close to his first signing of the summer.

Yet Calafiori picking Arsenal over the Italian giants is a true sign of just how big the Gunners now are after years of work and development, with the 22-year-old defender joining one of the most exciting projects on the planet.

Arteta has worked miracles at getting Arsenal back to their former glory, and Calafiori picking the north London side over Juventus is a true sign of how far the Premier League giants have come in recent years.