"He's world-class now. He's just won another big one in the United States and he won the jumps premiership and was jumps jockey of the year when he was riding for us. He's won some big races for us."
Mitchell's biggest win in New Zealand was in the 2015 Grand National Steeplechase (5600m) at Riccarton aboard the Brian and Shane Anderton-trained High Forty, one of 22 races he won during the course of that winter.
Prepared by Rogerson, his wife Debbie and granddaughter Bailey, Gallante will be Mitchell's sixth ride in the Great Northern Hurdle, a race he came closest to winning when second aboard Raisafuasho at Ellerslie in 2016.
"We think he's flying," Rogerson said of the dual group one-winning galloper.
"He's a tough horse. He doesn't like being hit with the stick but he's been going to Ann Browne's and Ann said to me he's a natural. But he can put in a short one and a long one.
"He works up Brownes' hill like a trooper. He pulls all the way up and he's still pulling at the top too. The jumping has turned him around mentally."
Gallante's 16-length maiden hurdle triumph at Te Aroha last month was his first win since the 2016 group one Sydney Cup (3200m) at Randwick.
Mitchell will also ride the Peter and Jessica Brosnan-trained Old Countess in the Irvines Great Northern Steeplechase (6400m) at Te Aroha and Wilijonmcbride and Suffice To Say on the undercard.
- NZ Racing Desk