Clarke allowed three runs on six hits and three walks while striking out two over three innings in a no-decision against the Giants on Friday.
This was the Clarke's third start as a fill-in for Merrill Kelly (shoulder) and the shortest of the three. Overall, he's posted a 3.75 ERA across 12 innings as a starter. The Diamondbacks appear to be preparing the recently acquired Caleb Smith (COVID-19) to join the rotation; he's scheduled to throw 70 pitches in an intrasquad game Saturday, per Nick Piecoro of the Arizona Republic. By the time Arizona next needs a fifth starter, Smith would not be on normal rest, so Clarke could squeeze in another start next Wednesday at home against the Dodgers.