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.
86031743 · Plays for Manta
Jefferson Sierra is a 30 year old professional footballer from Ecuador playing as D/WB R.
He is currently contracted to Manta until 31-Dec-2023 earning £696 per week .
Potential: Unlikely to Improve