Injury fears for Queenslands Corey Oates have been allayed by Wayne Bennett.But Maroons teammate Josh McGuire faces a nervous wait after being reported for a dangerous throw in Brisbanes 48-6 NRL loss to Melbourne at Suncorp Stadium on Friday night.Oates was forced from the field in the first half with concussion after being injured in a tackle trying to stop the eight try rout.The incumbent Maroons winger took no further part in the game in a concern for Queensland selectors who name their State of Origin III team on Monday.But Bennett gave Oates the all clear for the Maroons.Hell be fine in the 12 days when they play again, he said.McGuires Origin III prospects are not so certain after being reported for his lifting tackle on Dale Finucane.It added further insult after Brisbane suffered a record home loss and sixth defeat in their last eight games.Former ladder leaders Brisbane could slide as low as seventh by the end of the round.Bennett claimed he could see improvement in the most unlikely of areas - Brisbanes defence.They have conceded 88 points in their last two games.Melbourne led 30-6 at halftime after notching five tries in 18 minutes.Winger Suliasi Vunivalu nabbed a hat-trick to seal Melbournes 10th win in 11 games against Brisbane at Suncorp Stadium and claim the ladders top spot.However, Bennett said he was happier than after last rounds 40-14 loss to Canterbury.I dont believe it was un-Bronco like, he said of their effort.I dont like the scoreboard but I thought we were better defensively than we were last week.We left Canterbury a lot less confident than we will (against Melbourne).Five of their tries came off kicks. There were no huge defensive errors.Halfback Cooper Cronk set up five tries as Melbourne exploited Oates injury to carve up Brisbanes left edge.There was not much we could do to stop it, Bennett said.Bennett dipped his hat to bench utility Kodi Nikorima who dislocated his shoulder early but remained on the field to fill holes in their reshuffled backline as the Storm launched raid after raid.I dont know what would have happened if he had not stayed on the field for us, Bennett said.Brisbane are already without Jordan Kahu, Jack Reed, Greg Eden and Tom Opacic.Melb