Robertson was placed on the 10-day injured list Monday with right elbow soreness, Matt Breen of The Philadelphia Inquirer reports.

EDGE Analysis

This comes as a bit of a surprise, as Robertson fired a pair of scoreless innings in Sunday's win over the Marlins. The severity of the issue remains unclear, leaving his possible return date up in the air. Drew Anderson was recalled from Triple-A Lehigh Valley to take Robertson's place in the bullpen, while Seranthony Dominguez and Hector Neris are candidates to fill in as the team's closer while the veteran right-hander is on the shelf.