Manchester United sporting director Dan Ashworth has explained the club’s reasons for signing Joshua Zirkzee. The Premier League giants confirmed the transfer on Sunday. Zirkzee arrives from Bologna in a deal worth more than €40 million. The Dutch forward has signed a contract until June 2029, with the option to extend it for another season. “Securing a forward to enhance our already strong group of attacking players was a key aim for this summer,” Ashworth said in the statement. “We are delighted that we’ve managed to sign a player of Joshua’s calibre this early in the transfer window. “Joshu…