Featherston will likely be promoted to the majors on Monday, Matt Breen of the Philadelphia Inquirer reports.
The Phillies will place Andres Blanco on the disabled list Monday with a fractured left index finger, opening up a utility spot on the team's roster. Featherston was held out of Sunday's lineup at Triple-A Lehigh Valley and is already on the 40-man roster, making him the best candidate to replace Blanco. He's hit .264/.320/.446 with 12 home runs and four stolen bases in 352 at-bats for Lehigh Valley this season.