Midfielder Onazi has been making waves in Italy since he shone with the Lazio youth side in 2011, where he played 27 games and scoring 12 goals, and Everton were widely reported to be keen on signing him.
His debut for Lazio main team in 2012 only served to highlight his progress, and he has already clocked up 29 appearances ending on a high with the Coppa Italia victory over bitter city rivals Roma.
His performances have earned him quite a better profile with the Lazio faithful, while a superb run in the last African Cup of Nations culminated in the Super Eagles ending a 19-year wait for the continental crown.
It came as no surprise that clubs in the Premier League have been eyeing the youngster, but it appears, for the moment, that his contract until 2016 will be honoured, according to Tutto Mercato.
The 20-year-old central midfielder has also gained valuable European experience with his club, having turned out 11 times and also scored a goal in a 2-0 win against VfB Stuttgart in March.