WINNIPEG, Manitoba -- Matt Dunigan and Sammy Garza each threw two touchdown passes to lead the Winnipeg Blue Bombers to their fourth straight win, a 46-1 rout of the Ottawa Rough Riders.

Dunigan was 7-for-11 for 150 yards in the first quarter before leaving with strained right knee ligaments.

The Blue Bombers (5-2) broke a first-place tie with the Baltimore CFLs (4-2) by beating Ottawa for the second time in six days.

The Rough Riders (2-5) suffered their third straight loss.

Dunigan, who threw for 713 yards July 14, will be examined further today.