The long-time associate of the Yorkshire club has given the thumbs up for Buckley's arrival.
The Sunderland man hasn't figured in Dick Advocaat's plans at all in the new season, but conversely, Uwe Rosler appears very keen to integrate the the 25-year-old into his new project at Elland Road.
Buckley's arrival has also been well received on the part of supporters and pundits, while Leeds legend Eddie Gray is among the most recent to give his verdict on the signing.
Speaking in an interview aired on LUTV this week, Gray enthused about the loan signing of the Sunderland man, and offered his reasoning for why Buckley fits the bill for Leeds United.
"He's aggressive when he runs with the ball, he's quick, (he) puts defenders under pressure, and we've been crying out for (wingers) who can get by people," the 67-year-old said. "Hopefully Will Buckley can settle down quickly and be a thorn in the side of the teams we play against."
As reported by the BBC, Buckley will officially become a part of Leeds' playing squad following their trip to the Riverside to face Middlesbrough this weekend.
By foregoing his registration until the start of next week, it means that the Whites will have Buckley available for the Christmas period as part of the 93-day loan agreement.