CINCINNATI -- The Cincinnati Bengals are now down to three quarterbacks on Friday after they cut backup Zac Robinson, a third-year player who struggled with elbow issues the past year or so.

The team announced it was waiving Robinson under the category of "failed physical." He spent the entire 2013 season on the Bengals' physically unable to perform list due to an elbow injury that predated the start of the season's training camp. He was joined on the PUP list by fullback Chris Pressley, who was waived himself late last season.

Robinson's release gives the Bengals a cap savings in 2014 of $570,000. He is the second player the Bengals have waived this week. On Monday, practice squad center Scott Wedige was cut.

The releases also come one week before the Bengals are expected to draft both a center and a quarterback. With starting quarterback Andy Dalton's future in Cincinnati beyond 2014 somewhat uncertain, the Bengals are likely to draft a quarterback who could become a long-term option down the road in case a deal isn't reached that will keep Dalton in town. The drafted quarterback also would be brought on to help give the Bengals some added depth at the position behind veteran Jason Campbell and new third-string signal-caller Josh Johnson.

Robinson, who has been in Cincinnati the past two weeks for part of voluntary workouts, had been listed behind Dalton, Campbell and Johnson.

Earlier this offseason, Bengals practice squad quarterback Greg McElroy announced he was retiring. He later joined ESPN as an analyst for the new SEC Network.

In their three-round mock draft Thursday night, ESPN draft insiders Mel Kiper Jr. and Todd McShay picked center Marcus Martin (USC) for the Bengals in the second round. The third-round pick went to quarterback AJ McCarron (Alabama).