SARASOTA, Fla. — When Raiders receiver Johnny Holton comes into the game, the opposing team screams, “Reverse! Reverse!” Seriously.

The Jaguars did it twice Sunday, and somehow the rookie speedster still got away for 29 yards on his first attempt. The second time Oakland tried it, Holton was stopped for a 4-yard loss.

Opposing teams “get mad when he doesn’t do it,” quarterback Derek Carr said Wednesday. “But, it’s funny, man. He’s one of those weapons, he’s like Tavon (Austin of the Rams). You think of a guy like that, Tavon, I think of a guy back in the day, Dante Hall.

“When Dante Hall came in the game, something’s up. But, Johnny just happens to (be in on) the plays that have gone on a reverse. But, he’s actually a really good route runner. He’s actually a really good receiver. So, hopefully, we’ll keep them thinking that.”

Holton has four carries for 41 yards, but only one catch, for 4 yards. Receptions are tough to come by when you’re behind Amari Cooper, Michael Crabtree, Seth Roberts and Andre Holmes on the depth chart.

Holton is from the Miami area, didn’t play football in high school, and was discovered in a flag-football game by a junior-college scout. Carr thinks he has some great people to learn from with the Raiders.

“Continue to watch the guys that are older than him and learn how they go about their week,” Carr said. “As a rookie, it’s a long season and the hard thing for a guy like Johnny is he is someone that gives everything that he has, and this is going to be the longest that he’s had to give everything that he has.

“Keep watching those guys, watch how they work, watch how they take care of their bodies. If he continues to do that, he’s going to be a really good player in this league.”

A good stat: Carr has long said he doesn’t care about any stats, but there is one he likes: the Raiders being plus-8 in turnover margin.

“Most winning teams have a plus margin 99 percent of the time,” Carr said. “That’s a mental focus, a lot of mental discipline, obviously on my part not to force so many or trying to do too much.

“Obviously, they’re going to happen sometimes, but you just hope and know that the defense is going to get some as well, and we have a good unit. They’re really good when the ball’s on the ground, so whenever they can recover more and more, it gives us a little leeway.”

Vic Tafur is a San Francisco Chronicle staff writer.