The undefeated Dartmouth College men’s hockey team is the 10th-ranked team in the country in both national polls this week.The Big Green (8-0, 4-0 ECAC) were ranked 10th and received one first-place vote in both the USCHO.com and USA Hockey polls.Dartmouth will host two ECAC bouts at Thompson Arena in Hanover this weekend, starting with Brown University (3-7, 2-4) on Friday night (7). Yale (4-5, 3-3) and the Big Green will play Saturday night at the same time.Dartmouth defeated Yale 6-1 in Hanover back on Nov. 2.CJ Foley, Dartmouth’s junior defenseman, was named the ECAC defender of the week this week.Foley notched an assist in the Big Green’s 7-2 win over Vermont last Friday and scored the lone goal in their 1-0 triumph over Merrimack College last Saturday.On the season, Foley has seven points (two goals, five assists).