By Matt Hladik Maryland quarterback Taulia Tagovailoa was carted off with a knee injury during last Saturday’s win over Indiana. While Tagovailoa was able to return to the practice field during the week, he will not play against Northwestern today. Maryland officially declared the redshirt junior out moments ago. Billy Edwards Jr. will start in his place. Tagovailoa has been excellent this season, passing for 2,001 yards, 13 touchdowns and only five interceptions. He’s also added three rushing scores. Edwards Jr. misfired on all three of his passing attempts after he replaced Tagovailoa last w…