(…and verily, Carvalho did’st invoke the accursed ‘What the fucketh is thy problem, good sir?’ rule, but forsooth, it was all for naught. / Photo via Getty Images) When Clay Guida dropped out of UFC on FOX 7: Henderson vs. Melendez due to injury last week, it looked like Chad Mendes might be forced to beat up another outmatched palooka just to stay busy at the April 20th event in San Jose. (Such is his life ”” just body-shottin’ dudes who don’t deserve to be there, and collecting paychecks. It’s sad, really.) But Mendes’s latest replacement opponent could be an even tougher test than Guida was. MMAJunkie reports that Darren Elkins ”” who just scored a first-round TKO over Antonio Carvalho during the UFC 158 prelims over the weekend ”” has gotten the call to step in against Mendes at UFC on FOX 7. Elkins’s latest victory increased his current win streak to 5-0 since dropping to featherweight in 2011, including previous wins over tough competitors like Diego Brandao and Michihiro Omigawa. If his name still isn’t ringing a bell, it’s probably because every single one of Elkins’s UFC fights have been relegated to the prelims; when somebody says that a fighter has quietly amassed an impressive win streak, this is exactly the kind of thing they’re talking about. Unfortunately, Elkins’s match against Mendes likely won’t make the UFC on FOX 7 main card either ”” but a dominant win over a former title contender could change his fortunes significantly. Making that happen on a five-week layoff is easier said than done, of course. Your predictions?