Denis Shapovalov and Felix Auger-Aliassime clinched a maiden ATP Cup crown for Canada with victories over Spain's Pablo Carreno Busta and Roberto Bautista Agut in Sunday's final.

Canada lost their opening four matches of the competition but recovered in style to reach a first final, which they won 2-0 with a couple of commanding straight-sets wins in the singles matches.

Shapovalov saw off Carreno Busta 6-4 6-3 in the opening singles rubber to give Canada, who had to rely on other results to avoid elimination earlier in the tournament, the lead in Sydney.

World number 11 Auger-Aliassime followed that up with a 7-6 (7-3) 6-3 victory against Bautista Agut to give Canada an unassailable 2-0 lead, meaning that there was no need for a doubles decider.

"The emotions are unbelievable. There's no better feeling than winning," Auger-Aliassime, who saved 10 of the 11 break points he faced, said in his on-court interview. "We left everything out there. 

"We came back from far in this competition, losing our first four matches. But we never stopped believing. I think that's very important. We trust each other to the highest level.

"It came down to the perfect result. I'm super thrilled for everybody in the whole team and myself, of course."

Canada become the third nation to have lifted the trophy after Serbia, who beat Spain 2-1 in the 2020 final, and Russia in 2021.