Alexander Zverev, Casper Ruud fail for 2nd year in a row as ATP Acapulco remains unpredictable burial ground for top seeds

Alexander Zverev, Casper Ruud fail for 2nd year in a row as ATP Acapulco remains unpredictable burial ground for top seeds

Alexander Zverev, Alex de Minaur, Casper Ruud and Alejandro Davidovich Fokina, the top four seeds at this year's Mexican Open in Acapulco, have all been ousted from the ATP 500 hardcourt event.

ATP Rankings: Alexander Zverev faces battle to keep hold of No 4 spot as Acapculo horror show continues

Alexander Zverev has not been lower than fourth in the ATP Rankings for nearly two years, but he is now in danger of slipping close to a top-10 exit after his struggles at the Mexican Open continued.