Three days before leaving for training camp in upstate Cortland, N.Y., the New York Jets are conducting what amounts to an audition day, as they plan to work out several veteran free agents on Monday.

The biggest names are wide receivers Austin Collie and Laurent Robinson, both of whom have a history of concussions, and place-kicker Billy Cundiff, according to league sources.

There's a good chance the receiver-needy Jets will add a wideout by the end of the day. Their top receiver, Santonio Holmes, is rehabbing a surgically repaired foot and is expected to miss significant time in training camp. He's hopeful that he can be ready by the season opener.

Collie, 27, and Robinson, 28, were players on the rise a couple of years ago, but they have suffered at least three and four concussions, respectively.

Collie, who is working his way back from a knee injury that cost him all but a game last season with the Indianapolis Colts, told USA Today Sports earlier this offseason that he would sign a waiver in order to play, if required, due to his history of concussions.

Robinson was cut by the Jacksonville Jaguars one year after signing a five-year, $32.5 million contract. He parlayed a breakout season with the Dallas Cowboys in 2011 -- 54 receptions and 11 touchdowns -- into the big pay day. But a concussion limited him to only seven games and 24 catches last season.

He also has workouts scheduled with the New England Patriots and Detroit Lions, according to a source.

Robinson told USA Today last week that he has filed a grievance against the Jaguars, hoping to be paid his 2013 base salary of $2.6 million. His 2013 salary was guaranteed for injury until April 5, the newspaper reported. He told the newspaper he "definitely wasn't ready to be cleared" in January when the Jaguars did so, but he is symptom-free now.

Collie caught 172 passes in his first three seasons with the Indianapolis Colts, including a big game against the Jets in the 2009 AFC Championship Game. He became a national story after sustaining highly publicized concussions, which sparked debate on violent hits in football. He has worked out for the Patriots and San Francisco 49ers.

The Jets are interested in Cundiff, 33, because they'd like to add training-camp competition for incumbent Nick Folk.

Cundiff, best known for missing a 32-yard field goal for the Baltimore Ravens in the final seconds of the 2011 AFC Championship Game, appeared in only five games last season for the Washington Redskins. The 49ers signed him for their playoff run as insurance for the struggling David Akers, but he never got into a game.