Forest Bihan disappointed behind Politologue at Kempton on his latest start, but Ellison put that down to soft ground and a right-handed course.
The North Yorkshire handler is keen to give the seven-year-old a chance to redeem himself.
"He's fine and is in at the weekend. It depends on the ground. He really needs good ground," said Ellison.
"He's in the two-mile handicap chase at Doncaster and has to go left-handed. He definitely doesn't like going right-handed."
Among the 16 entries are Kerry Lee's duo of Top Gamble and Gino Trail, Harry Whittington's hat-trick-seeking Bigmartre and Foxtail Hill from the Nigel Twiston-Davies yard.
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