Mikaela Mayer will defend her WBO welterweight world title in a rematch against former champion Sandy Ryan on Saturday, March 29, at Bleaulive Theater, Las Vegas, it was announced today.

Mikaela Mayer (R) and Sandy Ryan will fight for a second time on March 29. Mikey Williams/Top Rank WBO welterweight champion Mikaela Mayer has said she wants to silence the doubters ahead of a ...