(They used to be boring wrestlers until Guida stopped being boring and Sherk stopped wrestling.)

Seems like it had to happen eventually: According to a new report on MMA Junkie, a lightweight showdown between Clay Guida and former champion Sean Sherk is being penciled in for UFC Fight Night 21 (March 21st, Denver; live on Versus). With his wrestling prowess and relentless pace, Guida has long been a threat in the 155-pound division, but he’s dropped his last two fights against Diego Sanchez (via split decision in June) and Kenny Florian (via second-round rear-naked choke in December). Meanwhile, Sherk has lost two out of his last three appearances — most recently a unanimous decision against Frankie Edgar at UFC 98 — due in large part to a decreasingly effective focus on boxing. Sherk was supposed to make his Octagon return earlier this month against Rafaello Oliveira, but was struck down by The Curse.

As we previously reported, the 3/21 card will be headlined by Jon Jones vs. Brandon Vera, and will likely include Anthony Johnson vs. John Howard. A lightweight scrap between Spencer Fisher and Duane "Bang" Ludwig, and a light-heavyweight tilt between Vladimir Matyushenko and TUF 8 vet Eliot Marshall are also being reported for the event