Sadiq A. Abdullahi (an haife shi 5 ga Fabrairu 1960) babban malamin farfesa ne na ilimin duniya da haɓaka tsarin karatu da haɓakawa a Jami'ar Florida ta Florida a Miami, Florida, Amurka. Ya kasance tsohon dan wasan kwallon Tennis daga Najeriya, wanda ya wakilci kasarsa ta asali a gasar wasannin bazara ta 1988 a Seoul , inda Javier Sánchez na Spain ya kayar da shi a zagayen farko. Mai hannun daman ya kai matsayinsa na ATP mafi girma a cikin 14 Oktoba 10, 1985, lokacin da ya zama lamba 262 na duniya. Sadiq Abdullahi at the Association of Tennis Professionals https://www.atptour.com/en/players/-/a001/overview