The Dallas Cowboys have added a quarterback to the mix.

Veteran Matt Cassel was acquired in a trade with the Buffalo Bills, the team announced on Tuesday. The Cowboys and Bills will swap fifth and seventh-round picks in the 2017 NFL Draft, FOX Sports NFL insider Mike Garafolo confirmed.

This is the second time Cassel has been traded in the past six months as he was shipped from Minnesota to Buffalo this past March.

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Cassel was released by the Bills earlier this offseason after he was beaten out for the starting role in Buffalo by Tyrod Taylor. Cassel was later signed on an abbreviated salary.

Brandon Weeden is expected to start Sunday at home against Atlanta, but Cassel is a veteran with far more experience than the fourth-year pro. Before the trade, owner Jerry Jones said on his radio show that Weeden was his starter.

Cassell has 71 starts in 90 games over 11 seasons, not counting the opener this year when he took the first snap for the Bills with Tyrod Taylor lined up at receiver.

Tony Romo, who fractured his clavicle in last Sunday's win against the Eagles, was placed on the injured reserve with designation for return.

The Cowboys reportedly worked out Matt Flynn, Christian Ponder, Josh Johnson and McLeod Bethel-Thompson this week.

The Associated Press contributed to this report