Ramsey played for Fisher from 2013 through 2015 at Florida State. Ramsey went on to be named a consensus All-American in 2015 and won a BCS National Championship under Fisher in 2014.
But on Monday, the 2017 first-team All-Pro defender said Fisher didn't teach him how to be a defensive back.
The jab came after Texas A&M tight ends coach Tim Brewster posted a graphic promoting Fisher. The graphic showed Fisher standing in front of former players who are now in the NFL. Ramsey and Minnesota Vikings cornerback Xavier Rhodes stone alongside Fisher. The graphic also featured Marquez White, P.J. Williams., Kevin Johnson, Ronald Darby, LaMarcus Joyner and Terrence Brooks.
"Fisher's Defensive Backs," the top of the graphic read. "189 total NFL starts. $8,426,868 average player earnings."
"DB Alert. Nothing but real faces. Come get some truth," Brewster wrote for the caption of the photo in a tweet.
Less than two hours after the tweet, Ramsey responded.
"He didn't teach me not one DB technique...#ComeGetSomeRealTruth," Ramsey tweeted. "#GoNoles."
"Know I have nothing but respect for you coach Brew, but don't use me on a poster for a school I didn't go to and for a coach who didn't teach me how to be a DB," he added.
Brewster responded to Ramsey's comment with a compliment.
"Nothing but love and respect for you Jalen Ramsey," he tweeted. "Always."
Know I have nothing but respect for you Coach Brew but don’t use me on a poster for a school I didn’t go to & for a coach who didn’t teach me how to be a DB.— Jalen Ramsey (@jalenramsey) February 27, 2018
Brewster was the head coach at Minnesota from 2007 through 2010. He coached tight ends at Florida State from 2013 through 2017, after stops at Purdue, North Carolina, Texas and Mississippi State. He also coached the position for the San Diego Chargers and the Denver Broncos.
Nothing but love and respect for you @jalenramsey always!!— Tim Brewster (@TimBrewster) February 27, 2018
Fisher decided to leave Florida State for Texas A&M in December. He compiled an 83-23 regular season record and went 5-2 in bowl games during his eight-year tenure at Florida State.