The star striker limped out of the first leg defeat at Elland Road, but boss Gary McAllister expects beckford's troublesome ankle to settle in time for him to play.
Leeds need their top scorer as they look to come back from their 2-1 home defeat,
and McAllister is hopes to exploit the fact that all the expectation is now on Carlisle.
He said: "In the last three or four days we've seen that the home teams have felt under a bit of pressure, which can be expected.
"We relinquish that. We go away from home, the shackles come off and the pressure is put on Carlisle a little bit.
"The fortunate thing is that it is half-time and we've got more than 45 minutes. We've got 90 minutes to get the ball back and go and win the game.
"It's not a case of being gung-ho and there's plenty of time to try to get back in the game. So it's a case of playing with our heads.
"Then we can look at it totally differently but the first goal is going to be very important."
David Raven is available for Carlisle again after a three-match ban, while midfielder Simon Hackney is expected to recover from an unspecified knock sustained in the first leg.
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