The father of UCLA freshman quarterback Dorian Thompson-Robinson ripped into first-year head coach Chip Kelly on Sunday night in a string of tweets.

In response to a prominent UCLA blog, Michael Robinson called Kelly's coaching and play-calling "lousy," and said his success at Oregon was "simply a fluke."

He is speaking on and about the factual... It is all about the coaching, lousy coaching and play calling... Coaching that is so bad that it demands closed practices... Million dollar coach who bares no responsibility... Just random observations from a frustrated dad! — Michael Robinson (@DoriansDAD) September 17, 2018

Look, coach Kelly, if you wish to call him this is 4 and 26 for his last offensively called football games... Dorian has only played in 3 of the last 30 games... Can you say duped! — Michael Robinson (@DoriansDAD) September 17, 2018

His years at Oregon was simply a fluke on his part... I am sure that he stood on the shoulders of the actual player callers... Random thoughts, outside looking in, closed practices... — Michael Robinson (@DoriansDAD) September 17, 2018

Thompson-Robinson has endured a tough start to his college career. He's completed under 55 percent of his passes and has thrown two touchdowns against two interceptions in three games (two starts) for the winless Bruins.

The Las Vegas native was the No. 2 dual-threat quarterback recruit in the 2018 class.

Kelly came to UCLA in the offseason with a ton of hype after two failed stints in the NFL. He led Oregon to a 46-7 record from 2009-12, and took the Ducks to the 2011 BCS National Championship Game.