The Pittsburgh Steelers have claimed quarterback Zach Mettenberger off waivers, a league source told ESPN's Field Yates.
CBS Sports earlier reported news of the acquisition.
Mettenberger was placed on waivers by the San Diego Chargers this week. The Chargers had originally claimed him off waivers after the Tennessee Titans released him in May.
A sixth-round selection in the 2014 draft, Mettenberger finished 0-10 as a starter in Tennessee and did not play in the past two preseason games for San Diego.
In his only preseason action, Mettenberger completed 2 of 8 passes for 22 yards, with no touchdowns and one interception against the Titans.
While Ben Roethlisberger is entrenched as the Steelers' top quarterback andLandry Jonesas his backup, the team has had issues with its third-string position. VeteranBruce Gradkowskiand project Dustin Vaughn were both in camp with the team, but each has been placed on injured reserve. Gradkowski, according to a source, suffered a hamstring tear during camp, while Vaughn has a thumb injury.
Information from ESPN's Eric D. Williams and Jeremy Fowler contributed to this report.
Source: Steelers claim QB Zach Mettenberger off waivers
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