“I think his lack of prep had a lot to do with the way he performed last week (second to Jemma Daley’s Hara’s Oden, who ran a very sharp 25.20 seconds).
“I expect him (Sironen Tiger) to improve 100% on that."
Russell is keen for Sironen Tiger to run in the top four.
"Then we will worry about the Final," he said.
“As far as the box draw is concerned, the four, well, the bottom line is you don’t worry about box draws.
“The only thing you have to do is get in that top four. Just get through.
“There will be a bit of speed in the race. The one (Hara’s Otis), two (Boom Two Down), three (Hara’s Neo) and the five (Scrub’s Blue) have all got good speed.