Ralph was assigned to AHL Springfield on Tuesday, per the NHL media site.
As expected, Ralph's temporary call-up was a salary-cap-related move by the Blues. St. Louis placed Torey Krug (ankle) on long-term reserve after bringing Ralph up from the minors.
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Blues' Colin Ralph: Summoned from AHL
Rotowire
Ralph was recalled from AHL Springfield on Monday, per PuckPedia.
Ralph hasn't earned a point in four minor-league appearances this season. The 21-year-old defender won't join St. Louis for the team's upcoming three-game road trip, which begins against Ottawa on Tuesday, according to Matthew DeFranks of the St. Louis Post-Dispatch. Ralph is with the Blues temporarily for salary cap purposes.
