Liverpool boss Jurgen Klopp turned on captain Jordan Henderson during Sunday's 0-0 draw with Manchester United.
The Reds captain seemed to snub his manager as he applauded travelling fans in the 72nd minute at Old Trafford while being replaced by Xherdan Shaqiri.
Klopp had tried to embrace Henderson but was instead left hanging on the touchline.
The German called back his player and the pair were seen in a heated exchange.
Fans noticed the awkward moment and some claim Klopp said: "You didn't shake my hand."
Henderson, 28, duly shook his boss' hand before taking his seat in the dugout.
Bonus, where that happened#MCICHE match, this happened between #Klopp and #Henderson in the #LiVSOU match pic.twitter.com/tgAQ46ZCKK Iam sure this will be an afterthought on the day all considering. Showing respect for others, teammates etc, can never be underrated to #Success — Shaun Harris (@SAHsoccer1) February 24, 2019