LAS VEGAS — The competition for the Raiders' starting quarterback job remained murky after both Aidan O'Connell and Gardner Minshew were outplayed Saturday night by Trey Lance, a third-stringer who threw a touchdown pass and rushed for another to lead the Dallas Cowboys to a 27-12 preseason victory over Las Vegas.
Lance, a former No. 3 overall draft pick who is trying to remain on the Cowboys' roster, completed 15 of 23 passes for 151 yards. He played the final three quarters for Dallas (1-1). With starter Dak Prescott watching from the sideline, Cooper Rush played the first quarter and completed 1 of 3 passes for 6 yards.
''I thought we improved today and it started with Trey,'' Cowboys coach Mike McCarthy said. ''He just needs to continue to play, he just needs reps. He needs to play in live games, particularly in the drop-back phase because he's done a very good job managing everything else. So I thought he clearly took a step today.''
Dallas kicker Brandon Aubrey ended the first half with a 66-yard field goal to give the Cowboys a 13-6 halftime lead. That kick would have tied Justin Tucker's NFL record if the game had been played in the regular season.
O'Connell looked ready to make a case to be the starter for the Raiders (0-2), but a 69-yard interception returned for a touchdown by cornerback Kemon Hall on the first play of the fourth quarter undid his earlier work. O'Connell finished 14 of 20 for 96 yards with a touchdown and the interception.
''I definitely did some good things, converting a fourth down and a couple of third downs, but missed some throws and missed some reads, too,'' O'Connell said. ''And then, obviously, the pick-six lingers in your mind.''
Minshew, O'Connell's competition for the job, started for the Raiders and had the full array of offensive talent on the field with him, except for wide receiver Davante Adams and tight end Brock Bowers (foot). Minshew played a drive into the second quarter, missing several open targets while completing 10 of 21 passes for 95 yards. The Raiders scored just a field goal in his four drives.
Minshew said his performance was ''not good enough. I had some misthrows, a misread. I have stuff to grow and improve on. I think we shot ourselves in the foot a lot tonight. Any time you do that, you're going to have a hard time, so there's plenty of stuff on tape to get back and work on and get right. There's a lot of good on there, too, to build on and have a lot of confidence in.''