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.
2000142487 · Contracted to Lech Poznań
Bartłomiej Grzelak is a 39 year old Head of Sports Science from Poland.
They are currently contracted to Kolejowy Klub Sportowy Lech Poznań earning £271 per week.