Marcus' contract cancelled.U's midfielder Marcus Bean has left the club.
"His contract with us has now been cancelled, allowing him to find another club.
U's boss Tony Humes said of the move: "Marcus wasn't getting the football he wanted here so it was the right thing to go out on loan initially.
That loan ended last weekend and talks on his return led to his departure from the U's.
His first team appearances were limited earlier in the season and he joined Portsmouth on loan in November.