Morrow, who joined the Raiders as an undrafted free agent in 2017 out of Division III Greenville University in Illinois, was the Raiders' most dependable linebacker last season, when Las Vegas brought in a pair of high-priced free agents in middle linebacker Nick Kwiatkoski and weakside linebacker Cory Littleton.
In starting a career-best 11 games, Morrow had career highs in tackles (77), tackles for loss (8), sacks (3), passes defensed (9) and fumble recoveries (1), while tying career bests with an interception (of Drew Brees) and a forced fumble.
Morrow was the lone player in the league with at least three sacks and nine passes defensed, which led all NFL linebackers. He had a fan in former Raiders defensive coordinator Paul Guenther, who said in November, "He's a guy who can play multiple spots for us.
"He can see formations and plays before it happens. The biggest thing he's doing, he's being a great communicator out there. He's talking more, he's alerting guys, he's setting fronts and setting pressure for us. He's only going to get better."