The Phillies optioned Marchan to Triple-A Lehigh Valley on Saturday, Alex Coffey of The Philadelphia Inquirer reports.
J.T. Realmuto (knee) was activated from the injured list Saturday, squeezing Marchan off the big-league roster. The 25-year-old backstop owns a solid .894 OPS through 56 plate appearances with the Phillies, though he'll remain in the minors as long as Realmuto and Garrett Stubbs are both active.