Gaborik was with six other teammates Thursday morning in an optional skate but reported afterward that he still was experiencing "little headaches and pressure, not dizziness."
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The right wing, who led the Rangers in scoring last season and has 17 goals and 38 points in 47 games this season, said he had hoped to play in Thursday night's game but did not feel as well as he did after a full practice Wednesday.
Biron: 'It's a bad one'
Goaltender Martin Biron, whose left collarbone was broken Monday when his equipment dislodged, exposing a spot that was struck by Derek Stepan's shot in practice, will begin exercising in seven to 10 days.
"It's a bad one," said Biron, who had been very solid as a backup (8-6-0 with a 2.13 GAA) in the first year of a two-year contract. "Nothing like that has ever happened to me. I broke a finger once [in 13 seasons]."
Biron has offered advice to teammates in shootouts and said he will find a way to contribute, perhaps through trainer Jim Ramsay. "I'll call Rammer's cell phone on the bench," he said.
D Michael Del Zotto likely will miss four to six weeks after breaking a finger blocking a shot in the AHL on Wednesday. He had been reassigned after Bryan McCabe was acquired Monday from Florida . . . D Steve Eminger was scratched . . . C Kris Newbury was sent to the AHL . . . Derek Boogaard (concussion) said he hopes to begin skating daily soon.