English racing officials are hopeful Brazen Beau and Deep Field will race at Royal Ascot this year.

Royal Ascot's Nick Smith said the sprinters, set to clash in the Lightning Stakes on Saturday, were considered the most likely horses to try to continue Australia's success at the famous five-day racing carnival in June.

Brazen Beau is rated a strong chance to contest the Diamond Jubilee Stakes while the connections of unbeaten Deep Field met with Smith this week to discuss Royal Ascot options.

"They want to take it one race at a time as I understand it but they are very keen and hopefully they will make it over, (along) with Brazen Beau."

Deep Field will trying to win his first Group One race as he attempts to stretch his unbeaten run to six in the Lightning - the the first leg of the 2015 Global Sprint Challenge.

Australia wasn't represented at Royal Ascot last year after Brazen Beau's former stablemate Zoustar hurt himself as he was being prepared for the Diamond Jubilee Stakes.

"We have been so used to having Australian representation at Royal Ascot and tons of success, Black Caviar (in 2012) being the latest.

"It was really sad for everybody when Zoustar got injured."

Black Caviar, Scenic Blast, Miss Andretti, Takeover Target and Choisir all won the Lightning Stakes before enjoying Royal Ascot success in the same year.