Leon will start at catcher and bat eighth Wednesday against the Diamondbacks, Christina De Nicola of MLB.com reports.
Leon will be behind the dish for the third game in a row and appears to have emerged as the team's primary backstop while Jorge Alfaro (hamstring) remains on the injured list. Through his first 10 games with Miami, Leon is batting .267 with two runs, no extra-base hits and no RBI.