49ers work out 4 running backs, including a former 2nd-round pick

Kyle Posey is the Senior Producer at Niners Nation and has covered the 49ers since 2019. Kyle was an FCS wide receiver in college and has coached high school football for 8+ years. He's written for several sites and appeared on numerous podcasts. His extensive football history, paired with an accounting background, helps Kyle take an analytical and statistical approach to breaking down and covering the Niners.

The San Francisco 49ers worked out a pair of running backs on their off day, per NFL Network’s Mike Garafolo. D’Ernest Johnson was one. Let’s talk about him.

Johnson, 29, is listed at 5’10”, 208 pounds. Johnson was most recently with the Jacksonville Jaguars last season. He had 32…