With Thiago Silva's status in doubt, the UFC isn't taking any chances.

MMAjunkie.com (www.mmajunkie.com) has confirmed with sources close to the UFC that the promotion has pulled the Brazilian from a planned UFC 130 matchup with Quinton "Rampage" Jackson (31-8 MMA, 6-2 UFC), and Matt Hamill (10-2 MMA, 9-2 UFC) has stepped in to fill the void.

Verbal agreements for the contest are in place, and bout agreements are expected to be finalized shortly.

Hamill had been expected to face Phil Davis at April's UFC 129 event. It's currently unknown if Davis will receive a new opponent for the card or be shifted to a later date.

News of the new matchup was first reported by MMABay.co.uk.

Featuring a lightweight title rematch between champ Frankie Edgar and Gray Maynard, UFC 130 takes place May 30 at the MGM Grand Garden Arena in Las Vegas.

Silva's status became an issue earlier this week when the Nevada State Athletic Commission revealed the fighter's UFC 125 drug screen was still under investigation. While the NSAC has yet to file a formal complaint against Silva, the promotion has chosen to err on the side of caution.

Hamill enters the matchup on a five-fight win streak, albeit a bit of a dubious run with the inclusion of a disqualification victory over Jon Jones in December 2009. Nevertheless, "The Hammer" also counts wins over Tito Ortiz, Keith Jardine, Mark Munoz and Reese Andy during the run.

Meanwhile, Jackson is 3-1 in his past four bouts with wins over Lyoto Machida, Jardine and Wanderlei Silva and a lone decision loss to Rashad Evans.

Multiple reports had pegged Evans as a potential replacement for Silva, but sources close to the event indicated the bout was never officially offered to the former light heavyweight champion.