Those who submit STAFF changes, please provide an official source that shows the transfer/release. Transfermarkt isn't always trustworthy when it comes to staff.
454791 · Contracted to Zonguldak Kömürspor
Osman Yalçın is a 52 year old Assistant Manager from Turkey.
They are currently contracted to Zonguldak Kömürspor earning £456 per week.