Rúben Afonso Borges Semedo (an haife shi a 4 ga watan Afrilu 1994) ƙwararren ɗan ƙwallon ƙafa ne na ƙasar Portugal wanda ke taka leda a ƙungiyar Olympiacos ta Girka a matsayin mai tsaron gida na tsakiya ko kuma ɗan wasan tsakiya . An haife shi ne Amadora a cikin babban birnin Lisbon na zuriyar Cape Verdean, Semedo ya shiga tsarin matasa na Sporting CP yana ɗan shekara ta 16. A ranar 11 ga watan Agusta 2013 ya fara buga wasa na farko tare da ƙungiyar farko, inda ya ci ƙwallo a wasan sada zumunci da Fiorentina . Semedo ya shafe kakar ta 2013 - 14 tare da ƙungiyar B a gasar Segunda Liga, fitowar sa ta farko a gasar da ta faru a ranar 25 ga watan Agusta 2013 yayin da ya buga cikakken mintuna 90 a cikin nasarar gida 1-0 da Trofense . A ranar 26 ga watan Agusta 2014 shi, tare da abokin wasan sa Vítor, an ba da shi aro ga kungiyar Reus ta Spain. Don kamfen na 2015 - 16, an haɓaka Semedo zuwa babbar ƙungiyar Sporting.