Michelsen enters as the heavy favorite at World No. 37, though he's struggled recently with three losses in his last five matches. His form on clay has been inconsistent, alternating between wins and losses against quality opposition.

Martin Tiffon arrives as a significant underdog from Spain ranked 312th, but arrives in excellent form with four wins in his last five matches including a notable victory over Grigor Dimitrov. The qualifier will look to maintain his momentum against the higher-ranked American on clay.