Wenger could swap a Brazilian for another one.
The Ukrainian team offered to the Gunners to swap Denilson with William, plus a financial compensation of £4million.
If William made it clear that, despite the interest several European clubs have in him, he wants to play in the Premier League.
William started his career at Corinthians, after a short stay he signed a five years contract with Shakhtar. With the Ukrainian club he won the Ukrainian Premier League (2008,2010), the Ukrainian Cup (2008), the Ukrainian Super Cup (2008, 2010), the UEFA Cup (2009).
And before his move to Europe he won the South American Youth Championship with Brazil U20.