Editor’s Note: The headline in last week’s article was incorrect. We are rerunning the article in its entirety. We regret this error. The Dakota Valley boys basketball team remained undefeated after beating the Tri-Valley Mustangs at home on Friday, Jan. 20 and then trampling the Cossacks of Sioux Valley at the Corn Palace on Saturday, Jan. 21. The Friday night game had a competitive 1st…