Packers superstar Clay Matthews just got the Jermichael Finley stamp of approval ... 'cause the tight end tells us Clay's decision to buy real estate in Bieber's neighborhood is a "GREAT MOVE."
We broke the story ... Clay recently purchased a plot of land in The Oaks in Calabasas -- a private community where Justin Bieber has been raising hell for the past few years.
But Clay's Green Bay teammate tells TMZ Sports he's PUMPED for Matthews -- "If he's trying to party, it's a great move!"
Unfortunately for Clay, Bieber might be moving out verrrry soon -- so, if he wants to rock out with JB, he better move fast!
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