The organisers of the World Superbike championship have announced the cancellation of the last of 2016's three Italian rounds at Monza.
This year was set to mark the track's return to the WSBK calendar for the first time since 2013, with the two races pencilled in for 23-24 July.
However, the Monza round will now not be held after the absence of the necessary changes to the facility.
"Regarding the changes needed to bring the WorldSBK paddock back to Monza, all the bodies involved have requested the FIM and DWO [Dorna] for the time required in order to further analyse the project, with a view to confirming its feasibility in the near future", the organisers explained.
Another Italian track, Vallelunga, had been set as a potential replacement circuit, but it won't be used due to scheduling difficulties.
A new substitute circuit will be revealed before the beginning of May.