The Cowboys are optimistic about Dak Prescott playing this weekend. The quarterback suffered a calf strain before Dallas' bye week and was seen in a walking boot during the off week. Despite that, Prescott is expected to play against the Vikings and could return to practice by Wednesday. The Cowboys also get some help on the offensive line as La'el Collins returns to the team after serving a five-game suspension. He could return to his starting spot at right tackle.