Mikaela Mayer has built up a record of 10-0 with 4 wins coming inside the distance. She is very talented and has long reach and height for her division. For a boxer with her pedigree, it feels like she has been brought along more slowly than many other female boxers and that tells us that Top Rank has had no hurry to push for title fights. They probably have felt that she needed to develop further and she has been showing steady improvement. She is facing Lizbeth Crespo from Bolivia 13-4. Crespo to her credit has never been stopped and she has a good chin. She has no good wins to her record. For Crespo to win a bout against Mayer, it will take the performance of a lifetime. All underdogs in the nearest future will have got energy from Ruiz´s win over Joshua and they believe it´s possible.