UFC on Versus 4 results: Cheick Kongo defeated Pat Barry by strikes (KO) at 2:39 of round 1.

UFC on Versus 4 results: Charlie Brenneman defeated Rick Story via unanimous decision (29-28, 29-28, 29-28).

UFC on Versus 4 results: Matt Brown defeats John Howard by unanimous decision (29-28, 29-28, 29-28).

UFC on Versus 4 results: Matt Mitrione defeated Christian Morecraft via strikes (TKO) at 4:28 of round 2.

UFC on Versus 4 results: Tyson Griffin defeats Manny Gambruyan by unanimous decision (29-28, 29-28, 29-29).

UFC on Versus 4 results: Javier Vazquez defeats Joe Stevenson by unanimous decision (30-27, 29-28, 30-27).

UFC on Versus 4 results: Joe Lauzon defeats Curt Warburton by submission (kimura) at 1:58 of round 1.

UFC on Versus 4 results: Rich Attonito defeats Daniel Roberts by unanimous decision (29-27, 30-27, 29-28).

UFC on Versus 4 results: Charles Oliveira defeats Nik Lentz by submission (rear naked choke) at 1:48 of round 2.

UFC on Versus 4 results: Ricardo Lamas defeats Matt Grice via TKO (strikes) at 4:41 of round 1.

UFC on Versus 4 results: Michael Johnson defeats Edward Faaloloto by TKO (strikes) at 4:42 of round 1.

The UFC will make its fourth appearance on the Versus sports network Jun. 26 from the Consol Energy Center in Pittsburgh PA.

After failing to be medically cleared to compete, former No. 1 middleweight contender Nate Marquardt will not make his welterweight debut against Rick Story in the night's main event. He was forced to withdraw from his bout with Rick Story, who will now face Charlie Brenneman.

Heavyweights Pat Barry and Cheick Kongo each look to take a step towards the heavyweight title. Although he began his UFC career as a welterweight, former 'TUF' season winner Joe Stevenson will make his featherweight debut against WEC veteran Javier Vazquez.