The Reason Trey Lance’s Passes Have a Slight Wobble

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Trey Lance is one of the most gifted young quarterbacks I've ever seen.
He has a rare combination of arm strength, size, quickness, speed, intelligence and passion for the sport. He has just about everything a quarterback could want.
He just doesn't throw a tight spiral.
His passes tend to wobble. You've probably noticed this if you've watched him throw, particularly in slow motion. The nose of the football tends to flutter up and down slightly, which makes his passes more difficult to catch than if they were spirals.
There's a mechanical reason for the wobble, and it has to do with the way Lance finishes his throws.
Lance tends to throw a football the way one would throw a fastball. After he releases the ball, he snaps his wrist down so both his palm and thumb point to the grass, then he whips his arm across his body. This is how he generates spin.
But throwing a tight spiral is more like throwing a screwball than throwing a fastball. After a quarterback releases a football, he is supposed to pronate his hand so that his thumb points down, his pinky points up and his palm is perpendicular to the ground pointing away from his body. This generates more spin and the best spiral possible. This is how a quarterback is supposed to finish throws.
Lance doesn't really finish his throws the way best spiral-throwers in the world do. He muscles his throws with his arm. He lacks an elegant wrist flick at the end.
Does this mean he will fail as a quarterback? Of course not. Peyton Manning famously threw wobblers as well, and he was one of the greatest quarterbacks ever. So Lance can work around this limitation.
But he might not be able to fix it. He has been throwing a football the same way his whole life -- the muscle memory probably is ingrained by now. It would be easier for him to change his footwork or the way he reads defenses than his throwing motion at this point.
But he's only 22. Maybe he'll learn to pronate his wrist and finish his throws with time. He certainly will put in the effort.

Grant Cohn has covered the San Francisco 49ers daily since 2011. He spent the first nine years of his career with the Santa Rosa Press Democrat where he wrote the Inside the 49ers blog and covered famous coaches and athletes such as Jim Harbaugh, Colin Kaepernick and Patrick Willis. In 2012, Inside the 49ers won Sports Blog of the Year from the Peninsula Press Club. In 2020, Cohn joined FanNation and began writing All49ers. In addition, he created a YouTube channel which has become the go-to place on YouTube to consume 49ers content. Cohn's channel typically generates roughly 3.5 million viewers per month, while the 49ers' official YouTube channel generates roughly 1.5 million viewers per month. Cohn live streams almost every day and posts videos hourly during the football season. Cohn is committed to asking the questions that 49ers fans want answered, and providing the most honest and interactive coverage in the country. His loyalty is to the reader and the viewer, not the team or any player or coach. Cohn is a new-age multimedia journalist with an old-school mentality, because his father is Lowell Cohn, the legendary sports columnist for the San Francisco Chronicle from 1979 to 1993. The two have a live podcast every Tuesday. Grant Cohn grew up in Oakland and studied English Literature at UCLA from 2006 to 2010. He currently lives in Oakland with his wife.
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