BOISE The Idaho State and Idaho mens teams will play Dec. 20 at CenturyLink Arena. The two schools have played 100 times, but the game will be the first regular-season meeting in Boise. Boise State and Idaho are also likely to meet in a nonconference game at the arena this season. Idaho State, which announced its full 2013-14 slate Monday, will host Evergreen State on Nov. 9 in its regular season home opener, and also will play at Arizona State, Washington and Utah. The Bengals open Big Sky play by hosting Portland State on Jan. 2.