The Liverpool loanee trolled goalkeeper Adrian for his Sunday's Premier League howler
After securing a loan move to FC Porto on Tuesday , Grujic took to social media - a discussion of who he plays on his Fantasy PL team.
Grujic who made his loan move and expected to stay in the Primeira Liga until next season had made two appearances for the Reds this season, against Lincoln and Arsenal, although both appearances came out a win.
It's his second loan switch from Anfield under Jurgen Klopp after spending two seasons at Hertha Berlin.
Discussing his Fantasy Premier League team on Instagram, taking swipe at Aston Villa's Atkinson who netted a hat-trick in an embarrassing 7-2 defeat dealt to Liverpool in the Premier League, Grujic landed on Adrian misfortune.
The 24-year-old detailed how he'd taken hat-trick hero Ollie Watkins out of his team.
"The first couple of games the man [Watkins] is nowhere to be found, I impatiently decided to move him into fantasy, the rest is history," he said.
Following up with a flipped reply, he said about goalkeeper Adrian.
"(Atkinson) Probably ended Adrian's career at lfc."