Source: calf injury for Packers reserve lineman

Packers offensive lineman Andrew Tiller leaves the field during Green Bay's game against the Raiders on Friday, August 22nd.

GREEN BAY -- The Packers may take another hit to their offensive line depth after their preseason home game against the Oakland Raiders. According to an NFL source, Green Bay backup guard Andrew Tiller is expected to have an MRI in the coming days to determine the cause of swelling in his upper calf.

Tiller limped off the field during the second half of the game against the Raiders, before being taken to the Packers locker room on a cart with trainers. Head coach Mike McCarthy did not have additional injury information immediately following the game. McCarthy next speaks to reporters Sunday after practice.

Tiller entered the game against the Raiders in the second quarter, playing left guard as part of the 2nd-team offensive line unit. He played 26 snaps against Oakland, according to Pro Football Focus. He played 46 snaps against Tennessee and 41 against the Rams.

The 6'4, 324 pound lineman Tiller played his college football Syracuse. The 2012 6th round pick by New Orleans was signed to the Packers practice squad in November of 2013.