Greg Johnson became the first true freshman O-lineman to play for Minnesota since Daniel Faalele in 2018

[MaxyJR1]

This is not correct. Hell, Ersery started as a true freshman at RT against Nebraska in 2020, and played pretty much the whole game as I recall. Two true freshman OL played in 2019 as well - Guedet against Rutgers and Cooper against Maryland.

From website: Ersery
2021: Redshirted • lone action of the season came at Northwestern where he helped pave the way for Minnesota’s final scoring drive of the game.

2020 • FRESHMAN SEASON: Played in one game • made his collegiate debut when he started at right tackle at Nebraska • did not allow a sack and protected for an offense that rushed for 206 yards and passed for 181 yards against the Cornhuskers.

Guedet:
2020 • FRESHMAN SEASON: Played in one game • saw action at Nebraska and did not allow a sack as Minnesota rushed for 206 yards and passed for 181 yards.

2019: Redshirted • played in one game and made his Minnesota and collegiate debut at Rutgers.


Cooper:
2021 • SOPHOMORE SEASON: Did not see game action.

2020 • FRESHMAN SEASON: Played in one game, as he saw action against Michigan.

2019: Redshirted • played in one game • made his Minnesota and collegiate debut against Maryland.