Baki is a long-term adviser to Abdullah bin Musa'ad bin Abdul Aziz, the Sheffield United co-owner.
Board member Selahattin Baki has announced his departure from Sheffield United after four years.
The Turkish businessman will take on a similar role with Istanbul giants Fenerbahce, the club he has supported throughout his life.
Baki's Bramall Lane exit brings to an end an 11-year association with Abdullah bin Musa'ad bin Abdul Aziz, the Sheffield United co-owner, and arrives during a sustained period of uncertainty in the Blades' boardroom.
Posting on Twitter on Monday afternoon, Baki wrote:
Dear Blades,— Selahattin Baki (@PATRIOTS1899) 4 June 2018
I have been selected by Mr.Ali Koç to be a board member of Fenerbahçe Sports Club.This would not have happened if it wasn’t for the exciting 4 years I’ve had as a SUFC board member.I came to Sheffield merely as a fan and a businessman but left as a Champion director. pic.twitter.com/Kxkz1DW2Hx
The experience I have gained is priceless. I would like to thank all the Blades from the fans to the directors, employees and players. Once a Blade...... UTB⚔️— Selahattin Baki (@PATRIOTS1899) 4 June 2018
The last but not least, I would like to thank HRH for his vision, trust and sometimes patience for forging me into the man I am today. None of this would have been possible without you sir. I am forever in your debt.— Selahattin Baki (@PATRIOTS1899) 4 June 2018
Baki once featured in an episode of Danny Dyer's Real Football Factories over his association with the Fenerbahce fan group Kill For You.
The former sales and marketing officer helped to arrange the friendly between the 19-time Turkish champions and Sheffield United at Bramall Lane four years ago.
Earlier this year, Prince Abdullah, a member of the Saudi royal family, declared his intention to acquire the remaining 50 per cent of Sheffield United from Kevin McCabe, the club's long-term owner.