What position do both Beniamino Vignola and Gianni Rivera play in football?
Gianni Rivera Giovanni "Gianni" Rivera (] ; born 18 August 1943, in Alessandria) is an Italian former football midfielder, who was mostly utilised as an attacking midfielder, and politician.
Kalidou Koulibaly Kalidou Koulibaly (born 20 June 1991) is a Senegalese footballer who plays as defender for Serie A club Napoli and the Senegal national football team, usually as a centre-back. A large, quick and physically strong yet elegant player, he is recognised for his aerial prowess, anticipation, passing ability and versatility, as he can play both as a central defender, or as a full-back on either the right or left flank, in both a three or four-man defence; he has even been deployed as a defensive midfielder. His playing style has earned him the nicknames "K2" and "The Wall" from his fans.