Wanna see Rod Stewart mock Argentina for sucking in the World Cup and then defend Sweden?
Great, you're gonna love this clip!
The singer -- who's a MASSIVE soccer fan -- hit up Delilah for dinner over the weekend, when he stopped to talk World Cup.
His big beef ... he thinks Sweden got screwed out of a penalty kick during the match with Germany on Saturday when Marcus Berg had a breakaway shot.
Sigh of relief for German fans as Berg can't finish on the breakaway! pic.twitter.com/Uj1IMphlLG
Germany's Jerome Boateng raced in and manhandled Berg -- right in the penalty box -- but somehow, no penalty was called, which really pissed off Fox Sports analyst Stuart Holden.
Clearly, Rod Stewart agrees -- saying, "I think Sweden were robbed of a penalty."
Germany ultimately got the victory -- and now Stewart thinks they've got a real shot.
But the best part of the clip ... we asked Rod what he thought of Argentina and he screamed out, "USELESS!!!!"