

AP
The Eagles have remained confident about Carson Wentz‘s comeback from knee surgery, and believe he’s throwing harder than before his injury — thanks to some Chip Kelly era technology.
According to Tim McManus of ESPN.com, the Eagles said that Wentz’s velocity on throws is higher than it was last year. They know that, because of Zebra Technologies’ player tracking technology, which was installed in 2014 when their previous coach was bringing all manner of sports science goodies.
The system works through tags on players’ shoulder pads, which generate biometric measurements. There’s also a chip inside the ball which measures the velocity and spin rate throws. Those numbers show that Wentz is throwing it harder, and more on-target.
“Those are things we track actually with the footballs and things that we have,” Eagles coach Doug Pederson said. “We can monitor that stuff. Velocity has been up, accuracy has been up. Those are the things…