Newcastle scouts were in attendance at the Wankdorf stadium last week.
The match was a Champions League play-off between Young Boys and CSKA Moscow.
On the night the first leg was decided by a dramatic own goal from Kasim (full name Kasim Adams Nuhu), the Young Boys centre-back, in the 91st minute.
This is the player who Newcastle scouts were there to watch, according to Swiss publication Blick.
The 22 year old Ghanaian played 26 times for Mallorca in La Liga before going on loan to Young Boys last season.
Along with Kevin Mbabu, the pair turned their loan arrangements into permanent moves this summer.
The 6ft 3 central defender was playing alongside Mbabu in the defence against CSKA Moscow and they play the second leg on Wednesday away from home, with a dramatic turnaround needed.
Whether Newcastle are interested in a right footed centre-back is open to question but who knows what potential activity, in and out the club, we may see in the final 10 days of this transfer window?