Canada's Brad Jacobs has his first loss of the BKT World Men's Curling Championship in Moose Jaw, Sask.
He dropped a 6-5 decision on Tuesday to Scotland's Bruce Mouat at the Temple Gardens Centre.
WATCH | Canada's Jacobs falls to Scotland's Mouat for 1st loss at men's curling worlds:
Mouat made a hit in the extra end for the victory.
Scotland is in first place at 4-0 while Canada sits at 3-1 after seven sessions.
Jacobs will have two-game days for the rest of the round-robin portion of the competition.
The top six teams from the 13-team field will qualify for the weekend playoffs.