The winger has recovered from the virus that kept him out of Sunday's Premier League clash against Manchester United and was back out training this morning.
Rafa van der Vaart also trained today and Scott Parker is back after suspension ruled him out against United.
"We're looking okay," reported Harry. "Ledley King won't be fit. He played at the weekend, so he needs a few days rest."
William Gallas could also come back into the frame. "We'll see how he is," said Harry. "He's not played, but it's a possibility."
Harry also indicated that Jermain Defoe is set to start and that Louis Saha will sit the tie out. "He had fluid drained off his knee after Sunday, so he's not fit," added the manager.
Fans are reminded that we kick-off at 7.30pm tomorrow night.