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. Last season, the 5-foot-11, 198-pound forward logged 34 points (seven goals, 27 assists) and 23 penalty minutes in 58 regular season games with New Jersey.
Roughly speaking, four of those guys are window shopping for the Wolves. One of those guys is a former Montreal Canadien that is best known for the website didgomezscore.com, that valiantly tracked his 53 game scoreless drought which ended in 2012.
Will he wrangle a roster spot away from anyone in camp? Probably not. Let's just consider this a favor to an old friend of Brodeur's, and that's that.