Juventus are said to be in formal negotiations with Manchester United over the signing of Joshua Zirkzee. The forward has been a target for some time, and talks are said to be intensifying as the window progresses. The player remains under contract, but movement looks increasingly likely the longer talks go on. Until a fee and conditions are finalised, the deal remains vulnerable to disruption - especially if Fiorentina, Ajax and Sevilla decide to make a formal offer of their own in the coming days. At 1.5 goals scored per game this season, Juventus already pose a big threat. Joshua Zirkzee would be expected to maintain that level and give them another reliable option in attack. Manchester United have also been linked with Igor Matanovic, Ferdi Kadioglu and Finn Jeltsch while Juventus are reportedly monitoring Pape Matar Sarr, Franck Kessie and Juan Miranda. Stay tuned for more details as the story develops. Need more Juventus transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.