Catalina Mancera, the girlfriend of deceased Dallas Cowboys player Marshawn Kneeland, is pregnant, the Cowboys’ head coach announced at a news conference on Wednesday. “We’re going to honor Marshawn, his family, a number of different ways,” Brian Schottenheimer told reporters a week after the 24-year-old defensive end’s death. “The organization has been amazing. We’ve started the Marshawn Kneeland Memorial Fund, where we can all give and support Catalina. She’s pregnant, and so we want to make