The two were team-mates at Liverpool
Earlier this year, El Hadji Diouf had a go at his former Liverpool team-mate and captain Steven Gerrard - a feeling that was mutual judging from the former England skipper's book.
But this time his ire has been turned towards another ex-Reds team-mate from the Merseyside area.
In an interview with French football magazine So Foot, Diouf called Jamie Carragher an "egotist" and "the biggest turkey I've seen on a football pitch".
Carragher did not take that lying down and had his own word for a player who scored just six goals in 79 appearances for Liverpool:
It's better than a Donkey & plenty have called me that before!!!!!! https://t.co/SvDtAV7slr— Jamie Carragher (@Carra23) December 30, 2015