S. Sierra has been inconsistent recently, going 3–2 over the last five matches. Point statistics tell a concerning story — average DS of -0.8, meaning S. Sierra has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.4/10, leaving S. Sierra vulnerable on second serve and facing frequent return pressure. Break point efficiency is a red flag — S. Sierra has been losing the important points, with a BP efficiency of -11 over recent matches.