In the Phelps/Crocker case Crocker had a horrible leadoff swim in the 4x100 freestyle relay. He was a bit ill for that swim. He recovered, and Phelps gave up his spot because he knew Crocker was the WR holder and known to be a great relay swimmer. It worked.
There is a good chance Breeja swims the relay, at least in prelims. The medley relay prelims are August 3, while 100 breast finals are July 31. So the coaches will have all the facts they need to make the best choices.
There is a good chance Breeja swims the relay, at least in prelims. The medley relay prelims are August 3, while 100 breast finals are July 31. So the coaches will have all the facts they need to make the best choices.