The RFID chip could tell us where the ball is at any given point in time, but we wouldn’t necessarily know where it was when the player was down. To do that, as one source described to me, the NFL would have to put chips in each player’s knee and elbow pads — at least — to be able to coordinate locations.

Since the start of Week 6, Kaepernick has rushed for 52 yards per game, 28.1 percent of the 49ers’ rushing total, both best among quarterbacks during this stretch. With 34.4 percent of his fantasy production coming from the ground and a respectable Luke Bowanko Authentic Jersey clip of 228.8 passing yards per game since assuming starting duties in Week 6, Kaepernick is 10th among quarterbacks in fantasy points per game as San Francisco’s starter.

In August, Arians was rushed to a San Diego hospital before a Cardinals preseason game against the San Diego Chargers, thinking he had a kidney stone. The Cardinals said Arians was suffering from complications from diverticulitis, an inflammation in the colon.

He spent the night in the hospital and was released the next morning.

Arians’ health has been an issue throughout his career.

He gained 33 pounds during his first season in Arizona but lost about 15 in the first two Luke Joeckel Authentic Jersey months after the season. He began walking before practices during the 2013 season but hasn’t been seen doing that in a couple of seasons.

Before his time with the Cardinals, Arians was hospitalized before an Indianapolis Colts wild-card game against the Baltimore Ravens in 2013 because of an ear infection.

He also underwent surgery for prostate cancer in 2007 while with the Pittsburgh Steelers.

When he was the head coach at Temple, Arians said he was hospitalized for migraines, sometimes up to twice a week. He said the migraines stopped as soon as he was fired from Temple in 1988.