Dallas Cowboys coach Jason Garrett said Saturday night after the NFL draft that games are won up front on the offensive and defensive lines.

However, that isn’t evident by the Cowboys’ undrafted free agent signing class this year.

The Cowboys have agreed to terms with 15 undrafted free agents, but none of them play offensive or defensive line.

Two of the Cowboys’ three perceived needs this off-season were offensive and defensive line. They didn’t have the salary cap space to sign one before the draft.

The Cowboys used their first-round pick to draft Wisconsin center Travis Frederick No. 31 overall Thursday night. Frederick, however, was the only offensive lineman the Cowboys drafted, and they didn’t use a pick on a defensive lineman.

The Cowboys’ 15 undrafted free agents will join the club’s seven draft picks May 10-12 for a rookie mini-camp at Valley Ranch.

The Cowboys were happy to sign two free agents who went undrafted whom were among the 28 players they brought in for pre-draft visits to Valley Ranch: Arizona State outside linebacker Brandon Magee and South Carolina State safety Jakar Hamilton.

Hamilton transferred to South Carolina State from Georgia to clean up some academic issues and played in only eight games.

Magee had 113 tackles and 6½ sacks last year at Arizona State after missing the 2011 season with a torn Achilles tendon.

The Red Sox selected Magee in the 23rd round of last year’s Major League Baseball First-Year Player Draft and he signed with Boston last July. It was the third time that Magee, who played three seasons as an outfielder for Arizona State, had been drafted by an MLB team (he was selected by Tampa Bay in the 29th round in 2008 and by Oakland in the 21st round in 2011).