sentences:  Mehmet Sedef
  
  Mehmet Seyfettin Sedef (born 5 August 1987 in Kilis) is a Turkish professional footballer who plays as a defender for Adanaspor.After passing through their youth ranks, he joined the Beşiktaş senior squad in 2005, making his Süper Lig debut on 28 May 2005 against Akçaabat Sebatspor in the last match of 2004-2005 season.