Fellow center Lehtera, recovering from flu, should be ready Thursday.
Rookie shared the lead in shots on goal Sunday with four.
He was replaced in Sunday's game by forward Magnus Paajarvi.
Short-handed team was flat as eight-day road trip ends on a sour note.
Sami Vatanen scored two power-play goals to lead Anaheim.
The St. Louis Blues annonced today that they have officially signed Jaroslav Halak to a four year deal worth a reported 15 million dollars.
The deal is structured as follows:
Year one: $2.75 million
Year two: $3.50 million
Year three: $4.25 million
Year four: $4.50 million
The cap hit will be $3.75 million per year for each of the four years.
Halak's camp said they didn't file for salary arbitration because they wanted to negotiate without a deadline.
In other news...
Defenseman Carlo Colaiacovo has been re-signed for two years at $4.25 million. That's a cap hit of $2.125 per season.
Tough guy Cam Janssen has signed a one-year $600k contract extension. There is no word on how this will effect contract negotiations with Blues' enforcer, D.J. King.