That clean a cut seems extremely unlikely to have been caused by a metal stud.
I remember in high school I would play rugby in the morning - where metal studs where actually mandated - then have to change out for synthetic studs for soccer in the afternoon.
The synthetic studs ALWAYS had sharper edges but this was back in the 90s so I'm sure materials have changed a fair bit.
I remember in high school I would play rugby in the morning - where metal studs where actually mandated - then have to change out for synthetic studs for soccer in the afternoon.
The synthetic studs ALWAYS had sharper edges but this was back in the 90s so I'm sure materials have changed a fair bit.



