He is looking to shine between now and the end of the term, still holding hopes to make the England squad for this summer's World Cup.
And Allardyce said of Carroll: "We can keep him fit, we can play off him, he can hold the ball up, he can score goals and that has to be a big part of what he continues to do from now on.
"He is going to be tired - his match fitness is not quite going to be there, but then there is only games that can bring it.
"Andy playing and resting now will be the best thing for him, and the more matches he plays, the sharper he gets."
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