The 24 year old has been training with the Seasiders for the past three weeks in an attempt to impress boss Barry Ferguson and played in two behind-closed-doors games.
Ferguson explained: “There is nothing happening with Freddy. He’s come in and worked hard with us. He is a great lad but I’m more than happy with what I’ve got. I have a strong squad.”
However, Adu has been given permission to continue training at Bloomfield Road in an attempt to raise his fitness.
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