West Texas A&M sleeper kicker Sergio Castillo had threee private workouts, according to a league source.
Castillo also spent time with several NFL teams prior to and after his campus Pro Day workout.
Castillo is a priority free agent who has received several phone calls from teams this week.
Castillo, who can also punt, connected on 80 percent of his field goals with a long field goal of 55 yards.
Castillo has good height, distance and accuracy on his kicks.
He was a four-time All-Lonestar Conference selection.
Last season, Castillo hit 24 of 30 field goals and scored 149 points.
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Aaron Wilson covers the Ravens for The Baltimore Sun