The Titans signed Lambo to their 53-man roster Wednesday.
For at least one week, Lambo will fill in for Randy Bullock, who has been ruled out for Thursday's game against Green Bay with a calf injury. Lambo has converted 87.1 percent of field-goal attempts in his career, but he's had trouble with point-after tries (89.9 percent) and won't get hep from the weather with Thursday's game likely played in sub-freezing temperatures.