Neil Callan believes Mirsaale has earned the right to take his chance in the Investec Derby after winning a trial at Epsom on Wednesday.
The James Tate-trained colt remains a big outsider at around 66-1 for the premier Classic on June 1 despite his victory, but Callan feels the son of 2006 Derby hero Sir Percy deserves to go for glory.
"It was his first run of the year and I was very impressed with his work leading up to the race," Callan told At The Races.
"I knew he was going to be fit enough and I knew he would handle the track. He's not very big, but he's by a Derby winner (Sir Percy) and is out of a half-sister to a filly who was second in the Oaks (Meeznah).
"The trip won't be a problem and he handles the track. Any ground would come alike to him.
"There are always stronger credentials for horses that are at the top of three and at the top of the betting, but anything can happen in racing - you never know.
"The owner (Saif Ali) will want to run and I certainly want to ride. It's a key factor if you can handle the track and he has pace. He has everything right but it's just whether he turns up on the day and if he is good enough. We will know on the day.
"At the moment James is very happy with him and is thinking of taking in another trial at Lingfield or Chester. I think he will handle both tracks. If he can win another one along the way, why not?"