Rapid Reaction: Oakland Raiders

CLEVELAND -- A few thoughts on the Oakland Raiders' 23-13 loss to the Cleveland Browns.

What it means: This was a winnable game for Oakland; Cleveland wasn't very good early and the Raiders trailed 9-6 at the half. Winnable games are not going to be plentiful for the Raiders, whose next games are against Seattle, Denver, San Diego and Kansas City. Oakland is 0-7, and, yes, 0-16 is on the table. Things just seem to be getting worse. Oakland, the NFL’s only winless team, has lost 13 straight games dating back to last November and 16 straight in the Eastern time zone.

Stock watch: Third-down defense improves. The Raiders came in allowing third-down conversions more than 50 percent of the time. They improved big time, as Cleveland converted on third down just twice in 12 attempts.

Hayden's rust shows: Cornerback D.J. Hayden got in the game late and gave up a crucial touchdown in the fourth quarter. It was his first game action of the season. He suffered a broken foot in June. The No. 12 overall pick in 2013 wasn't great as a rookie and struggled Sunday.

Game ball: Rookie linebacker Khalil Mack, the No. 5 overall pick in 2014, isn’t flashy, but he is very productive. He is excellent against the run and had some nice pressure on the quarterback even though he is still looking for his first sack. The kid had another nice game.

What's next: The Raiders go to Seattle to face the defending champion Seahawks in one of the toughest places to play in the NFL. The Raiders had their fun against Seattle in the final preseason game, during which rookie quarterback Derek Carr won the starting job. It will be a bit more difficult this time.