Source: Dan Miller in for ‘Cacareco,’ Faces ‘Toquinho’ in Rio

Sherdog.com learned of the switch Wednesday from a source close to the fight; the reason for Ferreira’s withdrawal from the bout was not immediately clear.

Miller (Pictured, file photo) also served as a replacement in his most recent bout, a March decision loss to Nate Marquardt in which the 30-year-old New Jersey native took the place of Yoshihiro Akiyama on days’ notice. That defeat halted Miller’s momentum from back-to-back wins over Joe Doerksen and John Salter, the latter of which saw Miller fill in for Phil Baroni. A former International Fight League middleweight titleholder, Miller’s 13-5 record includes victories over Matt Horwich, Jake Rosholt and John Howard.

Leglock specialist Palhares, 31, has also competed once in 2011, submitting Dave Branch via second-round heel hook in March. The win put “Toquinho” back on track after his own loss to Marquardt, a September stoppage in which the Brazilian was punched out after complaining mid-fight that Marquardt’s leg was slippery. Palhares has notched nine of his 12 career wins via submission, including finishes of Daniel Acacio and Ivan Salaverry.

Headlined by a UFC middleweight title bout between champion Anderson Silva and top contender Yushin Okami, UFC 134 takes place Aug. 27 at Rio’s HSBC Arena.