LOS ANGELES -- This is the UFC on FOX 4 live blog for Mike Swick vs. DaMarques Johnson, a welterweight bout for Saturday night's UFC event at the Staples Center.

Swick, who will be competing in the UFC for the first time since UFC 109 because of injuries and illness, will fight Johnson, who has won three of his last five fights, on the main card.

Check out the live blog below.

Round 1: Herb Dean is the referee for this bout. They come out and touch gloves. Swick tags Johnson with a big overhand and Johnson does a nice job tying up and shaking it off. Johnson with a quick flurry. Swick grabs Johnson and goes for a knee but loses his balance and ends up on the ground. Johnson ends up in Swick's guard. Johnson lands a few rights on the ground. They're standing. Swick opens up. Both guys throwing haymakers. Swick goes for another knee. Swick body locks Johnson and scores a trip. Johnson, though, ends up on top of Swick. Swick tries to push out of it but can't. Swick in a bad spot with 90 seconds left as Johnson nearly gets his back. Johnson almost like he doesn't know what to do. Round finishes with Johnson in Swick's guard. MMAFighting scores the round for DaMarques Johnson, 10-9.

Round 2: Slow start to the first minute. And just like that it's over. Swick caught a Johnson kick, pushed him to the mat, nailed him with a huge right hand, then two more before Dean stepped in. Johnson is out cold.

Mike Swick def. DaMarques Johnson via KO at 1:20 of R2.

Round 3: