Edwards has never played a snap in the NFL and has no experience at guard, so Lacina is a logical option. However, a decision has yet to be announced.
Lacina, a 6-4, 302 pounder out of Augustana (SD), was a 16-game starter for the Minnesota Vikings' League-leading ground attack in 2002. He spent the offseason in the New England Patriots camp before being waived when the team announced its 53-man roster on Aug. 31.
Originally drafted in the sixth round (167th overall) of the 1993 draft by Buffalo, Lacina has played in 121 career games with 79 starts. He played for the Bills for five seasons (1993-97), Carolina for one season (1998) before landing in Minnesota where he started 41 of 56 games during the last four seasons.
Robertson started the first five games at left tackle last year before being demoted to a back-up role. He can play all five positions on the line, which looked to make his position on the team secure.
However, GM Jerry Angelo didn't draft the 2001 fifth-round pick. Although Terrence Metcalf isn't expected back from a broken finger until Week 2, he can play a similar utility role on the line when he returns.