The fee is understood to be between £4.5million and £5million, and the 22-year-old, who has just returned from a three-month loan spell at Sheffield United, is now heading to the Reebok Stadium.
Megson said: "We´ve finally reached the point where we have agreed a transfer with Villa that they are happy with and we´ve been given permission to talk to Gaz. Hopefully we can get it done quickly but we want to make sure it´s done right."
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