The Toronto Star reports that riders could learn as early as tomorrow whether a strike will shut down the TTC later this month.
Amalgamated Transit Union Local 113 President Bob Kinnear says he will hold a press conference sometime tomorrow to express his frustration with the pace of the negotiations.
Local 113 has promised to give riders 48 hours notice of any strike action.
Two other unions, representing millwrights and communications and electrical workers, are also negotiating with the TTC.