Former New Jersey Devil Scott Gomez is currently an UFA. He is also 35.
I will assume his inclusion in the following is either a professional courtesy or the work of Martin Brodeur. From the Blues' official website:
St. Louis Blues President of Hockey Operations and General Manager Doug Armstrong announced today the club has invited forwards Scott Gomez, Spencer Asuchak, Eriah Hayes, Zach O’Brien and Evan Trupp to their 2015 Training Camp on a professional tryout basis.
Gomez, 35, is a 15-year NHL veteran with stints in New Jersey, New York (Rangers), Montreal, San Jose and Florida.