Cowboys defensive end DeMarcus Lawrence has agreed to a new three-year deal worth $40 million ($30 million guaranteed) to stay in Dallas. With the deal, Lawrence becomes the first DE to have seven straight seasons with a fully guaranteed contract. Lawrence, 29, originally signed a five-year, $105 million contract ($65 million guaranteed) in 2019, then refused to take a reduced salary earlier this month. The new deal ostensibly puts both sides at ease. He was drafted by the Cowboys in the second round of the 2014 NFL draft. Lawrence appeared in just seven games this past season (foot), but he s…