A couple of fighters just went down in the land "Down Under.'

Heavyweight Ben Rothwell and light heavyweight Elvis Sinosic have been removed from the UFC 110 fight card. "Big" Ben is suffering from what the UFC is calling a "virus" while the "King of Rock n Rumble" injured his shoulder and is unable to compete.

The UFC confirmed the unfortunate news earlier today, adding that the Sinosic vs. Haseman contest has been canceled while Australian veteran Anthony Perosh will step up on short notice to face Mirko "Cro Cop" Filipovic.

"The Hippo" actually has two UFC appearances on his resume. Much to his chagrin, they're back-to-back losses from 2006. After getting stopped by Jeff Monson at UFC 61: "Bitter Rivals," Perosh dropped a unanimous decision to Christian Wellisch at UFC 66: "Liddell vs. Ortiz 2" later that year.

Since then, the Aussie has compiled an impressive 5-2 record fighting primarily under the Cage Fighting Championships (CFC) banner in Sydney. All five of his wins have come by way of TKO or submission.

But will it be enough to hang with Cro Cop?

The Croatian dropped his third loss inside the Octagon in five attempts when he quit against Junior Dos Santos at UFC 103: "Franklin vs. Belfort" last September. He has not defeated a top-level fighter since he made Josh Barnett tap at "Final Conflict Absolute," which earned him the Pride FC 2006 Open Weight Grand Prix Championship.

Still, it's hard to imagine Filipovic training much differently for Perosh than he would have for Rothwell, so expect him to come out firing on all cylinders. And credit to Perosh for taking a dangerous opponent on such short notice.

To check out the complete UFC 110 fight card, which has now been whittled down to nine bouts, click here.