Per the source, Valencia have made an enquiry and are set to make a bid for the highly sought after Turkish international.
The Daily Star report states that Valencia could face competition from the Red Devils who are preparing a £20 million move for Ozyakup.
Bilic did of course coach Ozyakup for two seasons during his time in charge of Besiktas. The former Dutch U21 international captain became one of the most highly sought after players in the league under the Croatian manager and played a key role in the Istanbul giants winning the league title last season.
Ozyakup played for Arsenal as a youth player before joining Besiktas in 2012 in pursuit of first team football.