Feud Alert: Who's Calling Sean Penn a "Loser"?

Oscar winner blasted once again for his support of a certain South American president

No doubt Sean Penn won't be attending any Chicago White Sox games in the near future.

And it's not because he doesn't like baseball...

The team's outspoken manager, Ozzie Guillen, seems to have made a second career out of blasting the Oscar winner for his support of Venezuelan president Hugo Chavez. It all started back in March after Penn defended Chavez during an appearance on Real Time With Bill Maher.

Guillen, a Venezuelan-American former pro-baseball player, wasn't pleased, tweeting that Penn is "very crazy." He later challenged Penn, also on Twitter, to move to the South American country "to see how long you last clown."

Fast forward to today.

During an interview on In Depth With Graham Bensinger, Guillen said of the actor, "He is a loser...When you say our country is in good shape when it's not. Who are you to talk about Venezuela?"

Guillen suggested he and Penn visit Venezuela together. "I invite him to go to Venezuela with me, and I'll say, 'This is Venezuela, bro. Here it is, this Venezuela, not the one they show you.'"

We have a feeling Penn won't be taking him up on the offer. His rep did not comment for this story.