Sky Sports understands the Peterborough United striker is close to completing a move to the Hoops, with the two clubs having agreed a fee for the in-form 23-year-old.
Washington has been in sensational form for Posh this season and has impressed with 15 goals, including 10 in 25 League One appearances.
Recently, Tribalfootball.com gave some insight into the form of Washington who has been influential for the Posh since his move from Newport County in 2014.
By Joe Baker
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