Not a Major League team, no.
The former Major League Baseball team located in Montreal was the Expos. The team relocated to Washington D.C. as the Nationals.
Canada's first MLB team was the Montreal Expos who began play in 1969.
Jackie Robinson, 1945, Montreal Royals
The Montreal Impact play Canadian professional soccer.
the Montreal allouettes
There is no team named the Montreal Cups, are you mistaking the for the Montreal Canadiens? If you are, then they play at Bell Centre (en francais: Centre Bell).
the Montreal Expos
The Montreal Canadiens
i think it was the Montreal canadians