Nystrom was released by the Blues on Monday.
Nystrom was likely just a filler as guys were away at the World Cup of Hockey and will be looking for a new home. Last season, the winger recorded seven goals, 20 PIM, and 92 hits with the Predators, but appeared in only 46 contests due to injury. If he does land a spot on an NHL roster, the 33-year-old is unlikely to secure anything more than a bottom-six role and will offer limited fantasy value.
Nystrom signed a professional tryout agreement (PTO) with St. Louis on Thursday, James Mirtle of TSN 1050 reports.
The left wingman was relatively unproductive with Nashville last season as he managed only seven goals and no assists in 46 games played. However, at 33 years old, he would bring hockey acumen and a good sense of the ice to any team he eventually joins. If the veteran ends up signing with the Blues, he would likely compete for a third-line role behind up-and-coming forwards Jaden Schwartz and Robby Fabbri.