By Matt Hladik The Dallas Cowboys might be without tight end Dalton Schultz for some time due to a knee injury. Schultz injured his right knee during yesterday’s 20-17 win over the Cincinnati Bengals. According to ESPN’s Todd Archer, the fifth-year pro is dealing with a PCL issue similar to one that afflicted Ezekiel Elliott last season. Right now, Schultz’s immediate future is up in the air as the Cowboys wait to see how he heals up. “Swelling, range of motion, strength all will factor into Schultz return,” said ESPN injury expert Stephania Bell on Twitter. “If knee swollen and impedes muscul…