USA's Ashley Twichell and Egypt's Youssef Ramadan have scratched their A-finals while Auburn's Mason Mathias focuses on a competitive 400 free A-final.
Virginia women claimed the top seed in all individual events on Day 1 of the Tennessee Invite, with American record holder Gretchen Walsh leading the 50 free.
Paris Olympics: Meet the N J athletes training for gold-medal glory with Games 1 year away nj.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nj.com Daily Mail and Mail on Sunday newspapers.