After four sessions of play in the mixed doubles curling tournament at the Milan Cortina Olympics, Team USA is one of just three remaining unbeaten teams.

By virtue of having played one more game, Great Britain (3-0) and Canada (3-0) are tied atop the standings with the U.S. (2-0) just below.

Switzerland and Sweden are both tied for fourth, both 2-1 through three matches.

Italy (1-1) and Estonia (1-2) are sixth and seventh, while Czechia, South Korea, and Norway, the defending silver medalists, are all 0-3 and looking for their first wins.

It's still very early in the tournament. Each team with each play each other in a round-robin format, and the top four teams after round-robin play will move on to the semifinals, which will be played on Monday, February 9.

Just two sessions of curling will be held on Friday before the start of the Milan Cortina Opening Ceremony.

At 4:05 a.m. ET, Team USA will face off against Canada in a contest of unbeatens. Elsewhere, Italy will take on Switzerland, and Sweden will face Great Britain.

Session 2 will kick off at 8:35 a.m. ET with four games: Czechia vs. USA, Estonia vs. Italy, South Korea vs. Great Britain, and Sweden vs. Norway.