Plugging Murray into Roddick's draw at the 2006 Australian Open, he faces Baghdatis in the R16, Ljubicic in the QF, Nalbandian in the SF, and Federer in the final.
That's a pretty tough draw:
-Murray was 5-3 against Baghdatis. They played twice in 2011, which is the version of Murray that would now be playing in 2006. Baghdatis won in Rotterdam, 6-4, 6-1. Murray won in Tokyo, 7-6, 2-6, 6-4. And 2006 AO Baghdatis was probably the best Baghdatis ever.
-Murray was 4-3 against Ljubicic. They played once in 2011, with Murray winning at Wimbledon, 6-4, 4-6, 6-1, 7-6. Their prior match on hard courts was In Beijing in October 2010, with Ljubicic winning, 6-3, 6-2.
-Murray was 5-2 against Nalbandian, easily winning both of their matches in 2011, but when Nalbandian was ranked #66 and #54. As noted above, their biggest prime-to-prime matchup was Bercy in 2008, which Nalbandian won, 7-6, 6-3.
Then, there's Federer in the final. I have Murray as a favorite to make the final, but he could lose any of those three matches above. And then, Federer is definitely the favorite in the final.