Canada completed a clean sweep of group matches at the Rugby World Cup with a 29-14 win over perennial rival the United States.
Canada go into the quarter-finals as second seed after three bonus point wins, and they are likely to meet the United States again in next weekend's knockout round.
The match had all the bruising nature of a virtual derby encounter with Canada using their backs in the first half to carry the ball powerfully and at pace, crashing from depth into a tough United States defensive line, set flat and determined not to yield.
Canada managed three first half tries and led 19-7 at the break. But the United States yielded those points grudgingly; Canada had to use all of their skill and some persistence to create scoring chances.
The United States also were resourceful. Aware that Canada's lineout and the rolling mauls that develop from it is one of their strengths, the United States forwards simply refused to engage the maul and without opposition players committed, the maul became illegal.