Porter, who hasn't appeared in a game since Nov. 14 due to a toe injury, is out for at least another month, Michael Grange of Sportsnet.ca reports.
EDGE Analysis
Porter recently visited with a specialist and will be re-evaluated in about a month. The veteran forward has appeared in only eight games this season, so his prolonged absence shouldn't have a major impact on Toronto's rotation, though Juancho Hernangomez (ankle) figures to garner a solid reserve role as long as Porter remains sidelined.