Toronto FC
In 2017 , Toronto FC won the domestic treble with the MLS Cup , Supporters' Shield and Canadian Championship . 
<triplet> 2017 <subj> 2017 <obj> point in time <subj> Toronto FC <obj> season of club or team <triplet> MLS Cup <subj> 2017 <obj> point in time <subj> Toronto FC <obj> participating team <triplet> Canadian Championship <subj> 2017 <obj> point in time <subj> Toronto FC <obj> winner